WO2002085659A1 - Drive train with integrated electric motor - Google Patents

Drive train with integrated electric motor Download PDF

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Publication number
WO2002085659A1
WO2002085659A1 PCT/EP2002/004269 EP0204269W WO02085659A1 WO 2002085659 A1 WO2002085659 A1 WO 2002085659A1 EP 0204269 W EP0204269 W EP 0204269W WO 02085659 A1 WO02085659 A1 WO 02085659A1
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WO
WIPO (PCT)
Prior art keywords
transmission
drive unit
unit
drive
power
Prior art date
Application number
PCT/EP2002/004269
Other languages
German (de)
French (fr)
Inventor
Werner Klement
Peter Edelmann
Original Assignee
Voith Turbo Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP01109973A external-priority patent/EP1253036A1/en
Priority claimed from DE10120174A external-priority patent/DE10120174A1/en
Application filed by Voith Turbo Gmbh & Co. Kg filed Critical Voith Turbo Gmbh & Co. Kg
Publication of WO2002085659A1 publication Critical patent/WO2002085659A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B60K6/405—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H57/04—Features relating to lubrication or cooling or heating
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the invention relates to a drive unit, in particular with the features from the preamble of claim 1.
  • the document DE 41 24 479 A1 discloses a hybrid drive comprising an internal combustion engine and a connected via a clutch as
  • Coupling gear with stepless gear designed with an electric control branch designed with an electric control branch.
  • the shafts of the power split transmission which are in drive connection with the electrical machines, are connected in a rotationally fixed manner by means of a controllable clutch, so that all electric machines have a common drive motor or a common drive block via the blocked power split transmission
  • the individual units - electric motors and actuating coupling gears are combined to form a structural unit and can be uncoupled from the internal combustion engine via a separating clutch.
  • this design requires the presence of at least two electrical machines and the actuating coupling gear to ensure the steplessness of the speed and torque at the output. The speed / torque conversion is thus guaranteed solely via the unit from the two electrical machines and the actuating coupling gear.
  • the actuating coupling gear does not have the function of a gear unit in the usual sense, but rather serves only to combine the individual power components of the internal combustion engine or the first electric motor and the second electric motor, these power components being added to the output power.
  • the first electric drive machine can also be uncoupled from the internal combustion engine by means of a disconnect clutch and then works autonomously to provide the electrical power. To implement a speed / torque conversion between
  • both electric drive machines are required for the input of the gear unit and the output.
  • Another concept for hybrid drives is that there is an optional supply via the internal combustion engine or an electric drive machine, the electric drive machine being in a conventional drive train comprising an internal combustion engine, a gear unit and a corresponding coupling with the wheels to be driven, for example via a differential, the
  • Gear is assigned as a separate second drive source and can optionally be coupled to this or an input of the gear.
  • this solution already requires consideration of the space required for the separate second drive source and also the connection and control options when designing the drive train.
  • the invention is therefore based on the object of developing a drive unit for use in drive systems — in particular regardless of whether a hybrid drive is to be implemented or not — with which a multitude of very different functions can be implemented with a minimal number of components and a small overall length.
  • the drive unit comprises a gear unit with at least one input and at least one output and a housing.
  • the housing can be made in one or more parts.
  • an electrical machine which can be operated at least as an electric gate, comprising a rotor and a stator unit is provided.
  • the electrical machine is integrated in the housing of the gear unit.
  • the rotor of the electrical machine can be connected in a rotationally fixed manner to a power-transmitting element between the input and the output of the gear unit.
  • This solution has the advantage that, on the one hand a completely self-sufficient drive unit can be created, which does not require an additional drive machine, since the drive machine in the form of the electric motor is already integrated in the transmission and is non-rotatably connected to a power-transmitting element or to connecting elements, which are non-rotatably coupled, between the input and output of the transmission unit when electronic power is required connected is.
  • This drive unit can thus be designed as an independent drive unit with the simultaneous possibility of speed / torque conversion with a corresponding design of the power-transmitting elements of the gear unit.
  • the rotor can be dragged along when the electrical machine is not energized and coupled to a power-transmitting element, and thus the electrical machine are operated at idle and as idle losses only the power that is required by dragging is to be consumed.
  • the electrical machine can at least be switched on and off.
  • the drive unit is to be provided with additional functional elements.
  • the power-transmitting elements are understood to mean any elements that enable power to be transmitted between two components and that can also take over the function of speed / torque conversion. Depending on the type of gearbox, these gearbox elements therefore include
  • the individual elements involved in the power transmission are referred to as power-transmitting elements.
  • these are, for example, individual spur gears or planet gears or the extensions, shafts or hollow shafts coupled to them and the connecting elements required between individual elements.
  • the rotor is either non-rotatably connected to a power-transmitting element between the input and the output of the gear unit, or detachably via a function element in the form of a switchable clutch.
  • a switchable clutch In the former case, this means that when it is incorporated into a drive system with an internal combustion engine and power is transferred from it to the output of the gear unit when the electric drive machine is not actuated, this or that
  • Rotor of the electrical machine is towed.
  • a first main power component thus reaches the output from the internal combustion engine, while a small second power component is required to drag the rotor.
  • the electric drive machine can be designed in such a way that the mechanical energy present on the rotor is simultaneously converted into electrical energy, that is to say the electrical machine is operated as a generator, and this power component is fed into a memory, for example in the form of a battery or, for example, when connected to an on-board electrical system of a vehicle can be. This has the advantage of being permanent
  • Provision of energy, for example to be used for the electric drive of power take-offs or other functions can be guaranteed.
  • this constantly non-rotatable connection for complete self-sufficient electrical energy supply, that is to say provision of the drive power solely via the drive unit designed according to the invention, it is necessary to decouple it from the drive machine, for example the internal combustion engine.
  • a separate separating clutch can be provided between the internal combustion engine and the gear unit.
  • the disconnect clutch can also be integrated in the gear unit, that is, in the housing. If this function is provided via the power-transmitting elements of the gear unit, this can be achieved by executing a gear unit with mechanical switching stages by solving the individual switching elements and thus completely interrupting the power, in which case the electric drive machine must be coupled to a gear element which viewed in the power flow direction between the input and output of the gear unit, it is subordinate to the switching elements.
  • Another possibility is to empty the hydrodynamic structural unit, for example when it is designed as a hydrodynamic-mechanical compound transmission when the rotor of the electrical machine is connected behind the hydrodynamic structural unit, and at the same time to release the lock-up clutch provided for bridging.
  • the latter options represent particularly advantageous arrangement and connection options, since in this
  • connection to the power-transmitting and speed-influencing and / or torque-influencing elements in the direction of the force flow there are also a number of possibilities, which partly overlap with the spatial arrangement, but which may also require different modes of operation with regard to their function.
  • a connection in the power flow direction is conceivable when viewed in the drive train in front of the power-transmitting elements with a spatial arrangement in front of or in the area of the power-transmitting elements or a connection in the power flow direction behind the power-transmitting elements with a spatial arrangement behind or in the area of the power-transmitting elements or further a connection to a power transmitting element anywhere between a variety of power transmitting elements.
  • the gear unit can be designed as an automatic transmission, automated manual or continuously variable transmission or manual transmission.
  • the first two possibilities offer the advantage of a possible utilization of the control device assigned to them for realizing different functions of the electric drive machine - drive or braking device or feeding electrical energy into a memory or a network.
  • the design of the electrical machine is not limited to a specific type, especially with regard to the flow guidance.
  • FIG. 1 illustrates in a schematically simplified illustration a drive system with a drive unit designed according to the invention
  • FIGS. 2a to 2d illustrate, in a schematically simplified representation, arrangement and connection possibilities of the rotor of an electrical machine to an element of a gear unit;
  • Figure 3 illustrates in a schematic simplified representation an advantageous embodiment of a drive unit with a hydrodynamic-mechanical compound transmission.
  • FIG. 1 illustrates in a schematically simplified representation using a drive system 1 the basic structure and the mode of operation of a drive unit 2 designed according to the invention.
  • the drive system comprises a drive machine 3 which can be connected to the drive unit 2 in a rotationally fixed manner, either directly or, for example, also via a switchable clutch 4, which acts as a disconnect clutch.
  • the drive machine 3 is designed as an internal combustion engine.
  • the drive unit 2 designed according to the invention comprises a gear unit 5 with at least one input 6 and one output 7.
  • the input 6 can be connected in a rotationally fixed manner to the drive machine 3, for example via the switchable clutch 4.
  • the output 7 is at least indirectly, that is to say coupled via further transmission elements, for example in the form of a shaft train 8 and via a differential 9, to the wheels 10.1 and 10.2 to be driven.
  • the drive unit 2 designed according to the invention, in particular the gear unit 5 belonging to it, furthermore comprises a housing 11. Furthermore, an electrical machine 12 which can be operated as a motor is provided.
  • the electrical machine 12 is according to the invention in the housing 11 of the transmission unit 5 integrated.
  • the electrical machine 12 comprises a rotor 13 and a stator unit 14.
  • the rotor 13 is furthermore, according to the invention, either directly or indirectly via further connecting elements, for example shafts or hollow shafts with a power-transmitting and possibly also theoretically the possibility of the speed / torque conversion element Gear unit 5 can be coupled.
  • the stator unit 14 is preferably fixed in the area of the inner circumference of the housing 11 or an intermediate wall mounted on the gear housing.
  • the electrical machine 12 is designed as an internal rotor.
  • the element that transmits power and possibly additionally enables a conversion of speed and torque is referred to below as the gear element.
  • this can be the starting element, for example a hydrodynamic clutch or a speed / torque converter, or a spur gear, a planet gear or one of the elements of a planetary gear set, or shafts or hollow shafts coupled to them.
  • the rotor 13, which is in drive connection with an element for power transmission and possibly possible speed / torque conversion of the gear unit 5, can be mounted in a constructive design either on both sides or on the fly on the gear element to be driven in each case.
  • the rotor 13 can be in constant drive connection with the gear element or can be separably coupled to the corresponding gear element via a switchable clutch (not shown in detail here).
  • a switchable clutch not shown in detail here.
  • Rotor 13 with a gear element of the speed / torque converter can be implemented in a drive system 1 according to FIG. 1 different functions.
  • a second possibility is to feed in both power via the internal combustion engine and the electrical machine and to combine them in the gear unit 5, with a first power component and the electrical power then being provided via the internal combustion engine 3 Machine 12 a second power component is provided, which are brought together on the speed / torque conversion device, which then performs the function of a summing gear.
  • a further possibility is to provide the power solely by the electrical machine 12 and to transmit it via the part of the transmission which is still in the direction of the power flow, whereby either the internal combustion engine can be decoupled or towed.
  • the main part of the power is introduced at one point in the transmission and transmitted via the rest of the part lying in the direction of the power flow to the output, the ones lying in the direction of the input in front of the transmission element with a coupled rotor 13
  • FIGS. 2a to 2d illustrate, in a schematically simplified representation, basic possibilities of integrating the electrical machine 12 in the gear unit 5 and coupling it with corresponding gear elements.
  • the gear structures selected by way of example in FIGS. 2a to 2d are characterized in that they each comprise a hydrodynamic gear part 15 and a mechanical gear part 16, which is connected downstream of the hydrodynamic gear part 15.
  • the configuration of the mechanical transmission part 16 can be varied, for example in the form of a stepped transmission or a continuously variable transmission or a combination of both. When designed as a rear-stage gearbox, this includes spur gear or planetary gear sets.
  • the hydrodynamic transmission part 15 comprises a hydrodynamic component, for example in the form of a hydrodynamic speed / torque converter 17 or a hydrodynamic clutch 18.
  • a lock-up clutch 22 provided in the form of a switchable clutch.
  • FIGS. 2a to 2d each represent possible embodiments, the hydrodynamic components being chosen freely and being interchangeable.
  • FIG. 2a illustrates an embodiment of a drive unit 2.2a designed according to the invention with a hydrodynamic transmission part 15.2a, comprising a hydrodynamic speed / torque converter 17.2a and a mechanical transmission part 16.2a, which is connected downstream of the hydrodynamic transmission part 15.2a and is designed, for example, as a step transmission.
  • the output 19 of the mechanical gear part 16.2a forms the output 7.2a of the gear unit 5.2a.
  • the electrical machine 12.2a in particular its rotor 13.2a, is connected upstream of the hydrodynamic transmission part 15.2a, which also functions as a starting unit.
  • the rotor 13.2a is rotatably coupled to the input 6.2a of the gear unit 5.2a and also to the drive 20 of the hydrodynamic gear part 15.2a, which is formed by the primary wheel 21.
  • the starting element in the form of the hydrodynamic speed / torque converter 17.2a is assigned a switchable clutch 22.2a as a lock-up clutch.
  • the electrical machine 12.2a Through drive between the internal combustion engine and input 6.2a, the electrical machine 12.2a is operated in generator mode. The result of this is that only part of the power provided by the internal combustion engine can also be taken off at the output 7.2a and a further second part, for example due to the generator operation of the electrical machine 12.2a, is converted back into electrical power or a counter torque is generated ,
  • a switchable clutch 4.2a is provided as a separating clutch. According to FIG. 2a, this is the drive unit 2 properly executed and assigned to the input 6.2a, but outside the housing 11.2a. Another possibility according to FIG.
  • the switchable clutch 33.2b is preferably structurally integrated in the rotor, that is to say the rotor 13.2b is supported via the switchable clutch 33 on a shaft coupled to the input 6.2a or to the latter itself.
  • FIG. 2c illustrates a further embodiment of a drive unit 2.2c designed according to the invention.
  • the gear unit 5.2c is also designed as a compound gear, comprising a hydrodynamic gear part 15.2c and a mechanical gear part 16.2c, for example in the form of secondary shift stages.
  • the hydrodynamic transmission part 15.2c is a hydrodynamic coupling
  • a switchable clutch 22.2c in the form of a lock-up clutch for realizing the mechanical through-drive between an input 6.2c and the output of the hydrodynamic transmission part 15, in particular when configured as a hydrodynamic clutch 18 to the secondary wheel 23.2c.
  • the electrical machine 12.2c is arranged spatially behind the hydrodynamic gear part 15.2c and viewed in front of the mechanical gear part 16.2c in the direction of power flow.
  • the rotor 13.2c is non-rotatably connected to the output, in particular the secondary wheel 23.3c, or to a shaft which is non-rotatably coupled to it.
  • the output 19.2c of the mechanical gear part 16.2c also forms the output 7.2c of the gear unit 5.2c.
  • the stator or the stator unit 14.2c of the electrical machine 12.2c is stored in the housing.
  • the rotor 13.2c is non-rotatably coupled to the output of the hydrodynamic transmission part, in particular the secondary wheel 23.2c and the input 24.2c of the mechanical transmission part 16.2c.
  • a further separating clutch as shown in FIGS. 2 and 2b, in the form of the switchable clutch 4.2 can also be dispensed with.
  • FIG. 2d illustrates a further embodiment of a drive unit 2.2d designed according to the invention, in which the electrical machine 12.2d is arranged behind the mechanical transmission part 16.2c, viewed in the direction of the force flow, from the input 6.2d to the output 7.2d, and in which the rotor rotates with the output
  • the electrical machine 12.2d which functions as an electric motor, is arranged directly on the output shaft, which has the advantage that the existing switching elements in the secondary stages 16.2d can interrupt the flow of power and can thus uncouple the drive machine from the gearbox 5.2d. Furthermore, the power transmission can also be interrupted by simultaneously releasing the switchable clutch 22.2d and emptying the hydrodynamic circuit in the hydrodynamic transmission part 15.2d.
  • FIG. 3 illustrates the structure of a drive unit 2.3 designed according to the invention in the form of a hydrodynamic-mechanical compound transmission 25 with an integrated electric drive machine 3.3 using a specific gear configuration.
  • This comprises a hydrodynamic gear part 15.3 and a mechanical gear part 16.3.
  • the hydrodynamic transmission part 15.3 comprises a hydrodynamic speed / torque converter 17.3 with a primary wheel P, which is coupled to the input 6.3 in a rotationally fixed manner, a secondary wheel T and two guide wheels L1 and L2.
  • the mechanical transmission part 16.3 comprises a mechanical speed-Z torque converter 26 and a group set 27 connected downstream in the direction of force flow in traction mode.
  • the mechanical speed Z-torque converter is designed as a modified Ravigneaux planetary gear set.
  • the first planetary gear set 28 comprises a sun gear 28.1, planet gears 28.2 and a ring gear 28.3.
  • the second planetary gear set 29 comprises a sun gear 29.1, planet gears 29.2 and a ring gear 29.3.
  • the groupset 27 comprises at least one planetary gear set 31, which has a sun gear 31.1, planetary gears 31.2, a ring gear 31.3 and a web 31.4.
  • the hydrodynamic transmission part 16.3, in particular the primary wheel P, is connected to the
  • Input E which can be coupled at least indirectly with a machine serving to drive the drive, preferably with a flywheel of an internal combustion engine.
  • the secondary wheel T is rotatably connected to a so-called secondary wheel shaft 32.
  • the hydrodynamic speed-Z-torque converter 17.3 is only used in the lower gears, preferably only used during the start-up process for power transmission. To improve the transmission efficiency, it is therefore removed from the power transmission in higher power ranges, in particular by means of the lock-up clutch 22.3.
  • the electrical machine 12.3 is arranged spatially between the starting element in the form of the hydrodynamic speed-Z-torque converter 17.3 and the mechanical speed-Z-torque converter 26.
  • the rotor 13.3 of the electric drive machine 12.3 is non-rotatably coupled to an element of the mechanical speed-Z-torque converter 26, here the shared web 30 and thus via the planetary gear set 31 of the downstream group 27 with the output 7.2d.
  • the stator is mounted in the housing 11.3.
  • the rotor 13.3 is arranged spatially in front of the additional switching stages in the form of the mechanical speed-Z-torque converter 26 and group switching set 27, but viewed in the power flow direction between input 6.3 and output 7.3, this is in direct drive connection with a gear element of the mechanical speed-Z-torque converter 26.
  • this drive unit 2.3 is integrated in a drive system, the input 6.3 can be coupled to an internal combustion engine, for example.
  • the electrical machine 12.3 can also stand alone as an independent drive source for an assembly coupled to the output 7.3 or, when used in vehicles, drive the transmission elements arranged between the output 7.3 and this for driving the wheels. Even when used in drive systems as shown in FIG. 1, that is to say coupling the input 6.3 to a drive machine in the form of an internal combustion engine, the power flow can vary between
  • the drive unit designed according to the invention thus offers a multitude of possibilities with regard to the fulfillment of various functions.
  • the electric drive machine 12 can act as a drive source, for starting the internal combustion engine, and as a provision device for the power for acceleration, and can also control driving at creep speed by appropriate control.
  • the vehicle can be kept on the mountain by means of appropriate control, in particular by changing the magnetic flux in the field built up by the stator, and, inter alia, by appropriate control concepts through the recovery of braking energy and appropriate reuse, emission-free driving, for example when driving in pedestrian zones.
  • Another significant advantage of the solution according to the invention is that if the power flow between the input 6 and the internal combustion engine is completely interrupted, niger power supply via the electrical machine 12, the direction of rotation of the output 7 can be influenced, in particular a mechanical reverse gear can be saved.
  • the control of the power actuator of the electrical machine and the gear unit 5 can take place via a common control device, which, not shown here, is arranged either in the gear housing or on the outside of the gear housing or at a spatial distance from it.
  • a common control device which, not shown here, is arranged either in the gear housing or on the outside of the gear housing or at a spatial distance from it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention relates to a drive train for a hybrid vehicle, characterized in that at least one electrical machine (12) that can be operated as an electric motor is integrated into the housing (11) of the transmission unit (5).

Description

ANTRIEBSEINHEIT MIT INTEGRIERTEM ELEKTROMOTOR DRIVE UNIT WITH INTEGRATED ELECTRIC MOTOR
Die Erfindung betrifft eine Antriebseinheit, im einzelnen mit den Merkmalen aus dem Oberbegriff des Anspruchs 1.The invention relates to a drive unit, in particular with the features from the preamble of claim 1.
Aus dem Stand der Technik sind eine Vielzahl von Hybridantrieben in unterschiedlichsten Ausführungen und die nach unterschiedlichen Konzeptstrategien betrieben werden, bekannt. Die Druckschrift DE 41 24 479 A1 offenbart einen Hybridantrieb, umfassend eine Brennkraftmaschine und ein über eine Kupplung verbundenes, alsA large number of hybrid drives in a wide variety of designs and which are operated according to different concept strategies are known from the prior art. The document DE 41 24 479 A1 discloses a hybrid drive comprising an internal combustion engine and a connected via a clutch as
Stellkoppelgetriebe mit elektrischem Regelzweig gestaltetes stufenloses Getriebe. Dabei werden die mit den Elektromaschinen in Antriebsverbindung stehenden Wellen des Leistungsverzweigungsgetriebes mittels einer ansteuerbaren Kupplung drehfest verbunden, so daß sämtliche Elektromaschinen über das verblockte Leistungs- Verzweigungsgetriebe einen gemeinsamen Antriebsmotor oder einen gemeinsamenCoupling gear with stepless gear designed with an electric control branch. The shafts of the power split transmission, which are in drive connection with the electrical machines, are connected in a rotationally fixed manner by means of a controllable clutch, so that all electric machines have a common drive motor or a common drive block via the blocked power split transmission
Generator bilden. Bei dieser Ausführung sind die einzelnen Einheiten - Elektromotoren und Stellkoppelgetriebe zu einer baulichen Einheit zusammengefaßt und über eine Trennkupplung von der Verbrennungskraftmaschine abkoppelbar. Allerdings bedingt diese Ausführung das Vorhandensein von mindestens zwei elektrischen Ma- schinen und dem Stellkoppelgetriebe um die Stufenlosigkeit von Drehzahl und Moment am Ausgang zu gewährleisten. Die Drehzahl-/Drehmomentwandlung wird somit allein über die Baueinheit aus den beiden elektrischen Maschinen und dem Stellkoppelgetriebe gewährleistet. Dem Stellkoppelgetriebe kommt dabei nicht die Funktion einer Getriebebaueinheit im üblichen Sinne zu, sondern dieses dient lediglich der Zusammenführung der einzelnen Leistungsanteile von der Verbrennungskraftmaschine oder dem ersten Elektromotor und dem zweiten Elektromotor, wobei diese Leistungsanteile zur Abtriebsleistung summiert werden. Die erste elektrische Antriebsmaschine kann zwar auch mittels einer Trennkupplung von der Verbrennungskraftmaschine abgekoppelt werden und arbeitet dann zur elektrischen Leistungsbe- reitstellung autark. Zur Realisierung einer Drehzahl-/Drehmomentwandlung zwischenForm generator. In this embodiment, the individual units - electric motors and actuating coupling gears are combined to form a structural unit and can be uncoupled from the internal combustion engine via a separating clutch. However, this design requires the presence of at least two electrical machines and the actuating coupling gear to ensure the steplessness of the speed and torque at the output. The speed / torque conversion is thus guaranteed solely via the unit from the two electrical machines and the actuating coupling gear. The actuating coupling gear does not have the function of a gear unit in the usual sense, but rather serves only to combine the individual power components of the internal combustion engine or the first electric motor and the second electric motor, these power components being added to the output power. The first electric drive machine can also be uncoupled from the internal combustion engine by means of a disconnect clutch and then works autonomously to provide the electrical power. To implement a speed / torque conversion between
Eingang der Getriebebaueinheit und Ausgang sind jedoch beide elektrischen Antriebsmaschinen erforderlich. Ein anderes Konzept für Hybridantriebe besteht darin, daß eine wahlweise Versorgung über die Verbrennungskraftmaschine oder eine elektrische Antriebsmaschine erfolgt, wobei die elektrische Antriebsmaschine in einem konventionellen Antriebsstrang aus Verbrennungskraftmaschine, Getriebebaueinheit und entsprechender Kopplung mit den anzutreibenden Rädern, beispielsweise über ein Differential, demHowever, both electric drive machines are required for the input of the gear unit and the output. Another concept for hybrid drives is that there is an optional supply via the internal combustion engine or an electric drive machine, the electric drive machine being in a conventional drive train comprising an internal combustion engine, a gear unit and a corresponding coupling with the wheels to be driven, for example via a differential, the
Getriebe als separate zweite Antriebsquelle zugeordnet ist und mit diesem beziehungsweise einem Eingang des Getriebes wahlweise koppelbar ist. Diese Lösung erfordert jedoch bereits bei Auslegung des Antriebsstrangs die Berücksichtigung des erforderlichen Platzes für die separate zweite Antriebsquelle und des weiteren die Anschluß- und Ansteuerungsmöglichkeiten.Gear is assigned as a separate second drive source and can optionally be coupled to this or an input of the gear. However, this solution already requires consideration of the space required for the separate second drive source and also the connection and control options when designing the drive train.
Beide aus dem Stand der Technik bekannten Lösungen sind durch einen erhöhten Bauteil- und Steuerungsaufwand charakterisiert. Des weiteren bauen diese aufgrund der erforderlichen räumlichen Trennung zwischen Energiequelle und Getriebebau- einheit beziehungsweise dem erforderlichen Vorsehen mehrerer elektrischer Antriebsmaschinen im allgemeinen in axialer Richtung sehr lang.Both solutions known from the prior art are characterized by increased component and control expenditure. Furthermore, due to the required spatial separation between the energy source and the gear unit or the required provision of several electric drive machines, they generally have a very long construction in the axial direction.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Antriebseinheit für den Einsatz in Antriebssystemen - insbesondere unabhängig, ob ein Hybridantrieb realisiert wer- den soll oder nicht - zu entwickeln, mit welcher mit minimaler Bauteilanzahl und geringer Baulänge eine Vielzahl unterschiedlichster Funktionen realisiert werden kann.The invention is therefore based on the object of developing a drive unit for use in drive systems — in particular regardless of whether a hybrid drive is to be implemented or not — with which a multitude of very different functions can be implemented with a minimal number of components and a small overall length.
Die erfindungsgemäße Lösung ist durch die Merkmale der Ansprüche 1 und 24 charakterisiert. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen wiedergege- ben.The solution according to the invention is characterized by the features of claims 1 and 24. Advantageous refinements are given in the subclaims.
Die Antriebseinheit umfaßt eine Getriebebaueinheit mit mindestens einem Eingang und mindestens einem Ausgang sowie einem Gehäuse. Das Gehäuse kann dabei einteilig oder mehrteilig ausgeführt sein. Des weiteren ist eine, wenigstens als Elek- tromtor betreibbare elektrische Maschine, umfassend einen Rotor und eine Statoreinheit vorgesehen. Erfindungsgemäß ist die elektrische Maschine im Gehäuse der Getriebebaueinheit integriert. Der Rotor der elektrischen Maschine ist drehfest mit einem leistungsübertragenden Element zwischen dem Eingang und dem Ausgang der Getriebebaueinheit verbindbar. Diese Lösung bietet den Vorteil, daß zum einen eine vollständig autarke Antriebseinheit geschaffen werden kann, welche keine zusätzliche Antriebsmaschine benötigt, da die Antriebsmaschine in Form des Elektromotors bereits im Getriebe integriert ist und mit einem leistungsübertragenden Element oder mit diesem drehfest gekoppelten Verbindungselementen zwischen Ein- gang und Ausgang der Getriebebaueinheit bei gewünschter elektronischer Leistungsbereitstellung drehfest verbunden ist. Diese Antriebseinheit kann somit als selbständiges Antriebsaggregat mit gleichzeitiger Möglichkeit zur Drehzahl- /Drehmomentwandlung bei entsprechender Ausgestaltung der leistungsübertragenden Elemente der Getriebebaueinheit ausgeführt sein. Bei Integration der Antriebs- einheit in einem Antriebssystem mit Verbrennungskraftmaschine können durch einfache Modifikation an der Antriebseinheit mehrere unterschiedliche Konzepte beim Betrieb des Antriebssystems verfolgt werden. Denkbar ist dabeiThe drive unit comprises a gear unit with at least one input and at least one output and a housing. The housing can be made in one or more parts. Furthermore, an electrical machine, which can be operated at least as an electric gate, comprising a rotor and a stator unit is provided. According to the invention, the electrical machine is integrated in the housing of the gear unit. The rotor of the electrical machine can be connected in a rotationally fixed manner to a power-transmitting element between the input and the output of the gear unit. This solution has the advantage that, on the one hand a completely self-sufficient drive unit can be created, which does not require an additional drive machine, since the drive machine in the form of the electric motor is already integrated in the transmission and is non-rotatably connected to a power-transmitting element or to connecting elements, which are non-rotatably coupled, between the input and output of the transmission unit when electronic power is required connected is. This drive unit can thus be designed as an independent drive unit with the simultaneous possibility of speed / torque conversion with a corresponding design of the power-transmitting elements of the gear unit. When the drive unit is integrated in a drive system with an internal combustion engine, several different concepts can be followed during operation of the drive system by simple modification to the drive unit. It is conceivable
a) die rein mechanische Übertragung zwischen Verbrennungskraftmaschine und einem anzutreibenden Aggregat oder Element, beim Einsatz im Fahrzeug beispielsweise der Achse oder den Rädern b) eine kombinierte mechanische und elektrische Leistungsübertragung durch Bereitstellung eines ersten Leistungsanteils von der Verbrennungskraftma- schine und eines zweiten Leistungsanteils von der elektrischen Antriebsma- schine, wobei beide Leistungsanteile an einem leistungsübertragenden Element der Getriebebaueinheit in Form eines Summiergetriebes zusammengeführt werden c) der rein elektrische Betrieb, bei welchem die Verbrennungskraftmaschine vollständig vom Antriebsstrang entkoppelt wird und zusätzlich bei allen genannten Möglichkeiten im Brems- oder Schubbetrieb d) beim Generatorbetrieb die Umwandlung mechanischer Energie in elektrische Energie und Einspeisung in einen Speicher oder ein Netz und e) bei entsprechender Ansteuerung der elektrischen Maschine, insbesondere dem Aufbau eines entsprechenden elektro-magnetischen Feldes die Nutzung als Bremseinrichtung.a) the purely mechanical transmission between the internal combustion engine and a unit or element to be driven, when used in the vehicle, for example, the axle or the wheels b) a combined mechanical and electrical power transmission by providing a first power component from the internal combustion engine and a second power component from the electrical Drive machine, both power components of a power-transmitting element of the gear unit being brought together in the form of a summing gear c) the purely electrical operation, in which the internal combustion engine is completely decoupled from the drive train and, in addition, with all the possibilities mentioned in braking or overrun operation d) in generator operation the conversion of mechanical energy into electrical energy and feed into a memory or a network and e) with appropriate control of the electrical machine, in particular the construction of an ent speaking electro-magnetic field use as a braking device.
Des weiteren kann der Rotor bei Nichtbestromung der elektrischen Maschine und Kopplung mit einem leistungsübertragenden Element mitgeschleppt und somit die elektrische Maschine im Leerlauf betrieben werden und als Leerlaufverluste nur die Leistung zu verbrauchen ist, die durch das Mitschleppen benötigt wird. Die elektrische Maschine ist dabei zumindest zu- und abschaltbar.Furthermore, the rotor can be dragged along when the electrical machine is not energized and coupled to a power-transmitting element, and thus the electrical machine are operated at idle and as idle losses only the power that is required by dragging is to be consumed. The electrical machine can at least be switched on and off.
Entsprechend der Anordnung im Leistungsfluß und Anbindung des Rotors der elektrischen Maschine an ein leistungsübertragendes Element sowie der Ausgestaltung der leistungsübertragenden Elemente ist die Antriebseinheit mit zusätzlichen Funktionselementen zu versehen. Unter den leistungsübertragenden Elementen werden dabei jegliche Elemente verstanden, die eine Leistungsübertragung zwischen zwei Bauelementen ermöglichen und die zusätzlich des weiteren die Funktion der Dreh- zahl-/Drehmomentwandlung übernehmen können. Zu diesen Getriebeelementen gehören somit - je nach Art des Getriebes -In accordance with the arrangement in the power flow and connection of the rotor of the electrical machine to a power-transmitting element and the design of the power-transmitting elements, the drive unit is to be provided with additional functional elements. The power-transmitting elements are understood to mean any elements that enable power to be transmitted between two components and that can also take over the function of speed / torque conversion. Depending on the type of gearbox, these gearbox elements therefore include
a) hydrodynamische Bauelemente und/oder b) hydrostatische Bauelemente und/oder c) mechanische Schaltstufen und/oder d) mechanische stufenlose Getrieteile.a) hydrodynamic components and / or b) hydrostatic components and / or c) mechanical switching stages and / or d) mechanical stepless transmission parts.
Als leistungsübertragende Elemente werden dabei im einzelnen die einzelnen an der Leistungsübertragung beteiligten Elemente bezeichnet. Bei Schaltstufen sind dies beispielsweise einzelne Stirnräder oder Planetenräder beziehungsweise die mit diesen gekoppelten Verlängerungen, Wellen oder Hohlwellen und die zwischen einzelnen Elementen erforderlichen Verbindungselemente.The individual elements involved in the power transmission are referred to as power-transmitting elements. In the case of switching stages, these are, for example, individual spur gears or planet gears or the extensions, shafts or hollow shafts coupled to them and the connecting elements required between individual elements.
Der Rotor ist entweder drehfest mit einem leistungsübertragenden Element zwischen dem Eingang und dem Ausgang der Getriebeeinheit verbunden oder aber lösbar über ein Funktiionselement in Form einer schaltbaren Kupplung. Im erstgenannten Fall bedeutet dies, daß bei Einbindung in ein Antriebssystem mit Verbrennungskraftmaschine und Leistungsübertragung von dieser zum Ausgang der Getriebebau- einheit bei nicht betätigter elektrischer Antriebsmaschine diese beziehungsweise derThe rotor is either non-rotatably connected to a power-transmitting element between the input and the output of the gear unit, or detachably via a function element in the form of a switchable clutch. In the former case, this means that when it is incorporated into a drive system with an internal combustion engine and power is transferred from it to the output of the gear unit when the electric drive machine is not actuated, this or that
Rotor der elektrischen Maschine mitgeschleppt wird. Ein erster Hauptleistungsanteil gelangt somit von der Verbrennungskraftmaschine zum Ausgang, während ein geringer zweiter Leistungsanteil zum Schleppen des Rotors benötigt wird. Die elektrische Antriebsmaschine kann dabei jedoch derart konzipiert sein, daß bei dieser Be- triebsweise gleichzeitig die dabei am Rotor vorhandene mechanische Energie in elektrische Energie umgewandelt wird, das heißt die elektrische Maschine als Generator betrieben wird und dieser Leistungsanteil in einen Speicher, beispielsweise in Form einer Batterie oder beispielsweise bei Anbindung an ein Bordnetz eines Fahr- zeuges in dieses eingespeist werden kann. Dies bietet den Vorteil, daß eine ständigeRotor of the electrical machine is towed. A first main power component thus reaches the output from the internal combustion engine, while a small second power component is required to drag the rotor. However, the electric drive machine can be designed in such a way that the mechanical energy present on the rotor is simultaneously converted into electrical energy, that is to say the electrical machine is operated as a generator, and this power component is fed into a memory, for example in the form of a battery or, for example, when connected to an on-board electrical system of a vehicle can be. This has the advantage of being permanent
Energiebereitstellung, beispielsweise zur Ausnutzung für den elektrischen Antrieb von Nebenabtrieben oder andere Funktionen gewährleistet werden kann. Bei dieser ständig drehfesten Verbindung ist es jedoch zur vollständigen autarken elektrischen Energieversorgung, das heißt Bereitstellung der Antriebsleistung allein über die er- findungsgemäß gestaltete Antriebseinheit erforderlich, diese von der Antriebsmaschine, beispielsweise dem Verbrennungsmotor zu entkoppeln. Dies kann zum einen über ein dafür vorgesehenes separates Schaltelement in Form einer schaltbaren Kupplung oder aber durch Ausnutzung der in der Getriebebaueinheit den leistungsübertragenden Elementen ohnehin zugeordneten Schaltelemente realisiert werden. Das Vorsehen einer separaten Trennkupplung kann bei Integration der Antriebseinheit in einem Antriebssystem dabei zwischen Verbrennungskraftmaschine und Getriebebaueinheit erfolgen. Die Trennkupplung kann jedoch auch in der Getriebebaueinheit, das heißt im Gehäuse integriert sein. Bei Bereitstellung dieser Funktion über die leistungsübertragenden Elemente der Getriebebaueinheit kann dies bei Ausfüh- rung einer Getriebebaueinheit mit mechanischen Schaltstufen durch die Lösung der einzelnen Schaltelemente und damit bedingt vollständigen Leistungsunterbrechung realisiert werden, wobei in diesem Fall die elektrische Antriebsmaschine an ein Getriebeelement gekoppelt sein muß, welches in Leistungsflußrichtung zwischen Eingang und Ausgang der Getriebebaueinheit betrachtet den Schaltelementen nachge- ordnet ist. Eine andere Möglichkeit besteht darin, beispielsweise bei Ausführung als hydrodynamisch-mechanisches Verbundgetriebe bei Anbindung des Rotors der elektrischen Maschine hinter der hydrodynamischen Baueinheit die hydrodynamische Baueinheit zu entleeren und gleichzeitig auch die zur Überbrückung vorgesehene Überbrückungskupplung zu lösen. Die letztgenannten Möglichkeiten stellen dabei besonders vorteilhafte Anordnungs- und Anbindungsmöglichkeiten dar, da in diesemProvision of energy, for example to be used for the electric drive of power take-offs or other functions can be guaranteed. In the case of this constantly non-rotatable connection, however, for complete self-sufficient electrical energy supply, that is to say provision of the drive power solely via the drive unit designed according to the invention, it is necessary to decouple it from the drive machine, for example the internal combustion engine. This can be achieved on the one hand by means of a separate shift element provided for this purpose in the form of a switchable clutch or by utilizing the shift elements which are in any case assigned to the power-transmitting elements in the gear unit. When the drive unit is integrated in a drive system, a separate separating clutch can be provided between the internal combustion engine and the gear unit. However, the disconnect clutch can also be integrated in the gear unit, that is, in the housing. If this function is provided via the power-transmitting elements of the gear unit, this can be achieved by executing a gear unit with mechanical switching stages by solving the individual switching elements and thus completely interrupting the power, in which case the electric drive machine must be coupled to a gear element which viewed in the power flow direction between the input and output of the gear unit, it is subordinate to the switching elements. Another possibility is to empty the hydrodynamic structural unit, for example when it is designed as a hydrodynamic-mechanical compound transmission when the rotor of the electrical machine is connected behind the hydrodynamic structural unit, and at the same time to release the lock-up clutch provided for bridging. The latter options represent particularly advantageous arrangement and connection options, since in this
Fall bereits ohnehin zur Funktion der Getriebebaueinheit vorhandene Elemente genutzt werden, um eine entsprechende Abkopplung zu erzielen und somit auf separate zusätzliche Bauelemente verzichtet werden kann. Bezüglich der räumlichen Anordnung des Elektromotors im Getriebe bestehen folgende Möglichkeiten:If already existing elements are already used for the function of the gear unit in order to achieve a corresponding decoupling and thus separate additional components can be dispensed with. The following possibilities exist with regard to the spatial arrangement of the electric motor in the transmission:
a) unmittelbar hinter dem Eingang vor den leistungsübertragenden und insbe- sondere drehzahl- und/oder drehmomentbeeinflussenden Elementen b) vor dem Ausgang, jedoch hinter den leistungsübertragenden und drehzahl- und/oder drehmomentbeeinflussenden Elementen c) räumlich zwischen den einzelnen leistungsübertragenden und drehzahl- und/oder drehmomentbeeinflussenden Elementen, beispielsweise bei Ausfüh- rung als hydrodynamische-mechanische Verbundgetriebe zwischen hydrodynamischem Bauelement und mechanischem Getriebeteil.a) directly behind the entrance in front of the power transmitting and in particular speed and / or torque influencing elements b) in front of the exit, but behind the power transmitting and speed and / or torque influencing elements c) spatially between the individual power transmitting and speed and / or torque-influencing elements, for example in the case of a hydrodynamic-mechanical compound transmission between the hydrodynamic component and the mechanical transmission part.
Bezüglich der Anbindung an die leistungsübertragenden und drehzahl- und/oder drehmomentbeeinflussenden Elemente in Kraftflußrichtung betrachtet bestehen ebenfalls eine Mehrzahl von Möglichkeiten, die sich mit der räumlichen Anordnung zum Teil überdecken, jedoch hinsichtlich der Funktion auch unterschiedliche Wirkungsweisen bedingen können. Denkbar ist dabei eine Anbindung in Leistungsflußrichtung betrachtet an den Triebstrang vor den leistungsübertragenden Elementen bei räumlicher Anordnung vor oder im Bereich der leistungsübertragenden Elemente oder eine Anbindung in Kraftflußrichtung hinter den leistungsübertragenden Elementen bei räumlicher Anordnung hinter oder im Bereich der leistungsübertragenden Elemente oder des weiteren eine Anbindung an ein leistungsübertragendes Element an beliebiger Stelle zwischen einer Vielzahl von leistungsübertragenden Elementen. Diese Möglichkeiten sind immer dann gegeben, wenn der Rotor nicht direkt sondern beispielsweise über weitere Übertragungselemente an die leistungsübertragendenWith regard to the connection to the power-transmitting and speed-influencing and / or torque-influencing elements in the direction of the force flow, there are also a number of possibilities, which partly overlap with the spatial arrangement, but which may also require different modes of operation with regard to their function. A connection in the power flow direction is conceivable when viewed in the drive train in front of the power-transmitting elements with a spatial arrangement in front of or in the area of the power-transmitting elements or a connection in the power flow direction behind the power-transmitting elements with a spatial arrangement behind or in the area of the power-transmitting elements or further a connection to a power transmitting element anywhere between a variety of power transmitting elements. These possibilities are always given when the rotor is not directly but, for example, via further transmission elements to the power transmission
Elemente der Getriebebaueinheit gekoppelt ist.Elements of the gear unit is coupled.
Die Getriebebaueinheit kann als Automatgetriebe, automatisiertes Schalt- oder stufenloses Getriebe oder Schaltgetriebe ausgeführt sein. Die beiden ersten Möglichkei- ten bieten den Vorteil einer möglichen Ausnutzung der diesen zugeordneten Steuereinrichtung zur Realsierung unterschiedlicher Funktionen der elektrischen Antriebsmaschine - Antrieb oder Bremseinrichtung oder Einspeisung von elektrischer Energie in einen Speicher oder ein Netz. Die Ausführung der elektrischen Maschine ist nicht auf einen bestimmten Typ begrenzt, insbesondere auch hinsichtlich der Flußführung.The gear unit can be designed as an automatic transmission, automated manual or continuously variable transmission or manual transmission. The first two possibilities offer the advantage of a possible utilization of the control device assigned to them for realizing different functions of the electric drive machine - drive or braking device or feeding electrical energy into a memory or a network. The design of the electrical machine is not limited to a specific type, especially with regard to the flow guidance.
Die erfindungsgemäße Lösung wird nachfolgend anhand von Figuren erläutert. Darin ist im einzelnen folgendes dargestellt:The solution according to the invention is explained below with reference to figures. The following is shown in detail:
Figur 1 verdeutlicht in schematisch vereinfachter Darstellung ein Antriebssystem mit einer erfindungsgemäß gestalteten Antriebseinheit;FIG. 1 illustrates in a schematically simplified illustration a drive system with a drive unit designed according to the invention;
Figur 2a bis 2d verdeutlichen in schematisiert vereinfachter Darstellung Anordnungs- und Anbindungsmöglichkeiten des Rotors einer elektrischen Maschine an ein Element einer Getriebebaueinheit;FIGS. 2a to 2d illustrate, in a schematically simplified representation, arrangement and connection possibilities of the rotor of an electrical machine to an element of a gear unit;
Figur 3 verdeutlicht in schematisiert vereinfachter Darstellung eine vorteilhafte Ausführung einer Antriebseinheit mit hydrodynamischmechanischem Verbundgetriebe.Figure 3 illustrates in a schematic simplified representation an advantageous embodiment of a drive unit with a hydrodynamic-mechanical compound transmission.
Die Figur 1 verdeutlicht in schematisch vereinfachter Darstellung anhand eines An- triebssystems 1 den Grundaufbau und die Funktionsweise einer erfindungsgemäß gestalteten Antriebseinheit 2. Das Antriebssystem umfaßt eine Antriebsmaschine 3, welche mit der Antriebseinheit 2 drehfest verbindbar ist, entweder direkt oder beispielsweise auch über eine schaltbare Kupplung 4, welche als Trennkupplung fungiert. Die Antriebsmaschine 3 ist dabei bei konventionellen Antriebssystemen 1 als Verbrennungskraftmaschine ausgeführt. Die erfindungsgemäß gestaltete Antriebseinheit 2 umfaßt eine Getriebebaueinheit 5 mit mindestens einem Eingang 6 und einem Ausgang 7. Der Eingang 6 ist dabei drehfest mit der Antriebsmaschine 3, beispielsweise über die schaltbare Kupplung 4 verbindbar. Der Ausgang 7 ist dabei wenigstens mittelbar, das heißt über weitere Übertragungselemente, beispielsweise in Form eines Wellenstranges 8 und über ein Differential 9 mit den anzutreibenden Rädern 10.1 und 10.2 gekoppelt. Die erfindungsgemäß gestaltete Antriebseinheit 2, insbesondere die zu dieser gehörige Getriebebaueinheit 5 umfaßt ferner ein Gehäuse 11. Des weiteren ist eine als Motor betreibbare elektrische Maschine 12 vorgesehen. Die elektrische Maschine 12 ist erfindungsgemäß im Gehäuse 11 der Getriebe- baueinheit 5 integriert. Die elektrische Maschine 12 umfaßt einen Rotor 13 und eine Statoreinheit 14. Der Rotor 13 ist erfindungsgemäß des weiteren entweder direkt oder indirekt über weitere Verbindungselemente, beispielsweise Wellen oder Hohlwellen mit einem leistungsübertragenden und eventuell auch zusätzlich theoretisch die Möglichkeit zur Drehzahl-/Drehmomentwandlung aufweisenden Element der Getriebebaueinheit 5 koppelbar. Die Statoreinheit 14 ist dabei vorzugsweise im Bereich des Innenumfanges des Gehäuses 11 beziehungsweise einer am Getriebegehäuse gelagerten Zwischenwand ortsfest gelagert. Die elektrische Maschine 12 ist als Innenläufer ausgeführt. Das Leistung übertragende und eventuell zusätzlich eine Wandlung von Drehzahl und Drehmoment ermöglichende Element wird nachfolgend als Getriebeelement bezeichnet. Bei diesem kann es sich - je nach Ausführung des Getriebes - um das Anfahrelement, beispielsweise eine hydrodynamische Kupplung oder einen Drehzahl-/Drehmomentenwandler, oder ein Stirnrad, ein Planetenrad beziehungsweise eines der Elemente eines Planetenradsatzes beziehungsweise mit diesen gekoppelte Wellen beziehungsweise Hohlwellen handeln. Der Rotor 13, welcher in Triebverbindung mit einem Element zur Leistungsübertragung und eventuell möglicher Drehzahl-/Drehmomentenwandlung der Getriebebaueinheit 5 steht, kann dabei in konstruktiver Ausführung entweder beidseitig oder aber fliegend am jeweils anzutreibenden Getriebeelement gelagert werden. Der Rotor 13 kann dabei in stän- diger Triebverbindung mit dem Getriebeelement stehen oder aber über eine, hier im einzelnen nicht dargestellte schaltbare Kupplung trennbar mit dem entsprechenden Getriebeelement koppelbar sein. Bezüglich der Ausgestaltung der Getriebebaueinheit 5 bestehen eine Vielzahl von Möglichkeiten. Diese umfaßt mindestens eine Drehzahl-/Drehmomentwandlungseinrichtung, welche zwischen dem Eingang 6 und dem Ausgang 7 angeordnet ist. Je nach Zuordnung beziehungsweise Kopplung desFIG. 1 illustrates in a schematically simplified representation using a drive system 1 the basic structure and the mode of operation of a drive unit 2 designed according to the invention. The drive system comprises a drive machine 3 which can be connected to the drive unit 2 in a rotationally fixed manner, either directly or, for example, also via a switchable clutch 4, which acts as a disconnect clutch. In conventional drive systems 1, the drive machine 3 is designed as an internal combustion engine. The drive unit 2 designed according to the invention comprises a gear unit 5 with at least one input 6 and one output 7. The input 6 can be connected in a rotationally fixed manner to the drive machine 3, for example via the switchable clutch 4. The output 7 is at least indirectly, that is to say coupled via further transmission elements, for example in the form of a shaft train 8 and via a differential 9, to the wheels 10.1 and 10.2 to be driven. The drive unit 2 designed according to the invention, in particular the gear unit 5 belonging to it, furthermore comprises a housing 11. Furthermore, an electrical machine 12 which can be operated as a motor is provided. The electrical machine 12 is according to the invention in the housing 11 of the transmission unit 5 integrated. The electrical machine 12 comprises a rotor 13 and a stator unit 14. The rotor 13 is furthermore, according to the invention, either directly or indirectly via further connecting elements, for example shafts or hollow shafts with a power-transmitting and possibly also theoretically the possibility of the speed / torque conversion element Gear unit 5 can be coupled. The stator unit 14 is preferably fixed in the area of the inner circumference of the housing 11 or an intermediate wall mounted on the gear housing. The electrical machine 12 is designed as an internal rotor. The element that transmits power and possibly additionally enables a conversion of speed and torque is referred to below as the gear element. Depending on the design of the transmission, this can be the starting element, for example a hydrodynamic clutch or a speed / torque converter, or a spur gear, a planet gear or one of the elements of a planetary gear set, or shafts or hollow shafts coupled to them. The rotor 13, which is in drive connection with an element for power transmission and possibly possible speed / torque conversion of the gear unit 5, can be mounted in a constructive design either on both sides or on the fly on the gear element to be driven in each case. The rotor 13 can be in constant drive connection with the gear element or can be separably coupled to the corresponding gear element via a switchable clutch (not shown in detail here). There are a multitude of possibilities with regard to the design of the gear unit 5. This comprises at least one speed / torque conversion device, which is arranged between the input 6 and the output 7. Depending on the assignment or coupling of the
Rotors 13 mit einem Getriebeelement des Drehzahl-/Drehmomentwandlers können in einem Antriebssystem 1 gemäß Figur 1 unterschiedliche Funktionen realisiert werden. Zum einen besteht die Möglichkeit, die Leistung von der Verbrennungskraftmaschine in Form der Antriebsmaschine 3 rein mechanisch ohne Ausnutzung einer theoretisch möglichen bereitstellbaren zusätzlichen Antriebsleistung durch die elektrische Maschine zu übertragen. Eine zweite Möglichkeit besteht darin, sowohl Leistung über die Verbrennungskraftmaschine als auch die elektrische Maschine einzuspeisen und in der Getriebebaueinheit 5 zusammenzufassen, wobei über die Verbrennungskraftmaschine 3 dann ein erster Leistungsanteil und die elektrische Maschine 12 ein zweiter Leistungsanteil bereitgestellt wird, welche an der Drehzahl- /Drehmomentwandlungseinrichtung zusammengeführt werden, wobei dieses dann die Funktion eines Summiergetriebes ausführt. Eine weitere Möglichkeit besteht je nach Anordnung der elektrischen Maschine 12 darin, die Leistung allein durch die elektrische Maschine 12 bereitzustellen und über den jeweils noch in Kraftflußrich- tung liegenden Teil des Getriebes übertragen wird, wobei entweder die Verbrennungskraftmaschine entkoppelt oder geschleppt werden kann. Im erstgenannten Fall wird der Hauptleistungsanteil an einer Stelle im Getriebe eingeleitet und über den restlichen in Kraftflußrichtung zum Abtrieb liegenden Teil übertragen, wobei die in Richtung Eingang vor dem Getriebeelement mit angekoppeltem Rotor 13 liegendenRotor 13 with a gear element of the speed / torque converter can be implemented in a drive system 1 according to FIG. 1 different functions. On the one hand, there is the possibility of transmitting the power from the internal combustion engine in the form of the drive machine 3 purely mechanically without utilizing a theoretically possible additional drive power that can be provided by the electrical machine. A second possibility is to feed in both power via the internal combustion engine and the electrical machine and to combine them in the gear unit 5, with a first power component and the electrical power then being provided via the internal combustion engine 3 Machine 12 a second power component is provided, which are brought together on the speed / torque conversion device, which then performs the function of a summing gear. Depending on the arrangement of the electrical machine 12, a further possibility is to provide the power solely by the electrical machine 12 and to transmit it via the part of the transmission which is still in the direction of the power flow, whereby either the internal combustion engine can be decoupled or towed. In the former case, the main part of the power is introduced at one point in the transmission and transmitted via the rest of the part lying in the direction of the power flow to the output, the ones lying in the direction of the input in front of the transmission element with a coupled rotor 13
Getriebeteile mitgeschleppt werden. Diese zweite Leistungsanteil ist jedoch sehr gering. Im zweiten Fall - bei noch angekoppelter Verbrennungskraftmaschine wird auch diese geschleppt. Der zweite Leistungsanteil ist daher wesentlich höher.Transmission parts are dragged along. However, this second share of performance is very low. In the second case - if the internal combustion engine is still connected, this is also towed. The second share of performance is therefore much higher.
Die Figuren 2a bis 2d verdeutlichen in schematisiert vereinfachter Darstellung grundsätzliche Möglichkeiten der Integration der elektrischen Maschine 12 in der Getriebebaueinheit 5 und die Kopplung mit entsprechenden Getriebeelementen. Die in den Figuren 2a bis 2d beispielhaft gewählten Getriebestrukturen sind dadurch charakterisiert, daß diese jeweils einen hydrodynamischen Getriebeteil 15 und einen mechani- sehen Getriebeteil 16 umfassen, welche dem hydrodynamischen Getriebeteil 15 nachgeschaltet ist. Die Ausgestaltung des mechanischen Getriebeteils 16 kann dabei vielgestaltig sein, beispielsweise in Form eines Stufengetriebes oder eines stufenlosen Getriebes oder einer Kombination aus beiden. Bei Ausführung als Nachschalt- stufengetriebe umfaßt dieses Stirnrad- oder Planetenradsätze. Der hydrodynamische Getriebeteil 15 umfaßt ein hydrodynamisches Bauelement, beispielsweise in Form eines hydrodynamischen Drehzahl-/Drehmomentwandlers 17 oder einer hydrodynamischen Kupplung 18. Zur Ausnutzung der Vorteile hydrodynamischer Leistungsübertragung in unteren Leistungsbereichen und der Ausschaltung der Nachteile hydrodynamischer Übertragungselemente in oberen Leistungsbereichen ist eine Über- brückungskupplung 22 in Form einer schaltbaren Kupplung vorgesehen. Die in denFIGS. 2a to 2d illustrate, in a schematically simplified representation, basic possibilities of integrating the electrical machine 12 in the gear unit 5 and coupling it with corresponding gear elements. The gear structures selected by way of example in FIGS. 2a to 2d are characterized in that they each comprise a hydrodynamic gear part 15 and a mechanical gear part 16, which is connected downstream of the hydrodynamic gear part 15. The configuration of the mechanical transmission part 16 can be varied, for example in the form of a stepped transmission or a continuously variable transmission or a combination of both. When designed as a rear-stage gearbox, this includes spur gear or planetary gear sets. The hydrodynamic transmission part 15 comprises a hydrodynamic component, for example in the form of a hydrodynamic speed / torque converter 17 or a hydrodynamic clutch 18. To take advantage of hydrodynamic power transmission in lower power ranges and to eliminate the disadvantages of hydrodynamic transmission elements in upper power ranges, there is a lock-up clutch 22 provided in the form of a switchable clutch. The in the
Figuren 2a bis 2d dargestellten Ausführungsmöglichkeiten stellen dabei jeweils Beispiele dar, wobei die hydrodynamischen Komponenten frei gewählt wurden und gegeneinander austauschbar sind. Die Figur 2a verdeutlicht eine Ausführung einer erfindungsgemäß gestalteten Antriebseinheit 2.2a mit einem hydrodynamischen Getriebeteil 15.2a, umfassend einen hydrodynamischen Drehzahl-/Drehmomentwandler 17.2a und einen mechanischen Getriebeteil 16.2a, der dem hydrodynamischen Getriebeteil 15.2a nachgeschaltet ist und beispielsweise als Stufengetriebe ausgeführt ist. Der Ausgang 19 des mechanischen Getriebeteils 16.2a bildet den Ausgang 7.2a der Getriebebaueinheit 5.2a. Die elektrische Maschine 12.2a, insbesondere deren Rotor 13.2a ist im dargestellten Fall dem hydrodynamischen Getriebeteil 15.2a, welcher auch als Anfahreinheit fungiert, vorgeschaltet. Der Rotor 13.2a ist dabei mit dem Eingang 6.2a der Getriebebauein- heit 5.2a drehfest gekoppelt und des weiteren mit dem Antrieb 20 des hydrodynamischen Getriebeteils 15.2a, welcher vom Primärrad 21 gebildet wird. Zur mechanischen Durchkopplung zwischen dem Eingang 6.2a der Getriebebaueinheit 5.2a und dem mechanischen Getriebeteil 16.2a ist dem Anfahrelement in Form des hydrodynamischen Drehzahl-/Drehmomentwandlers 17.2a eine schaltbare Kupplung 22.2a als Überbrückungskupplung zugeordnet. Durch die räumliche Anordnung und ebenfalls Anbindung der elektrischen Maschine 12.2a in Kraftflußrichtung bei Leistungsübertragung vom Eingang 6.2a zum Ausgang 7.2a betrachtet vor dem hydrodynamischen Getriebeteil 15.2a bedingt eine ständige Kopplung der elektrischen Antriebsmaschine, insbesondere des Rotors 13.2a mit dem Eingang 6.2a, was im Falle einer Ankopplung des Eingangs 6.2a an eine Verbrennungskraftmaschine zum einen beiFIGS. 2a to 2d each represent possible embodiments, the hydrodynamic components being chosen freely and being interchangeable. FIG. 2a illustrates an embodiment of a drive unit 2.2a designed according to the invention with a hydrodynamic transmission part 15.2a, comprising a hydrodynamic speed / torque converter 17.2a and a mechanical transmission part 16.2a, which is connected downstream of the hydrodynamic transmission part 15.2a and is designed, for example, as a step transmission. The output 19 of the mechanical gear part 16.2a forms the output 7.2a of the gear unit 5.2a. The electrical machine 12.2a, in particular its rotor 13.2a, is connected upstream of the hydrodynamic transmission part 15.2a, which also functions as a starting unit. The rotor 13.2a is rotatably coupled to the input 6.2a of the gear unit 5.2a and also to the drive 20 of the hydrodynamic gear part 15.2a, which is formed by the primary wheel 21. For the mechanical coupling between the input 6.2a of the gear unit 5.2a and the mechanical gear part 16.2a, the starting element in the form of the hydrodynamic speed / torque converter 17.2a is assigned a switchable clutch 22.2a as a lock-up clutch. Due to the spatial arrangement and also connection of the electrical machine 12.2a in the direction of power flow when transmitting power from the input 6.2a to the output 7.2a, viewed in front of the hydrodynamic transmission part 15.2a, a permanent coupling of the electrical drive machine, in particular of the rotor 13.2a, to the input 6.2a, which in the case of coupling the input 6.2a to an internal combustion engine, on the one hand
Erzeugung der Antriebsleistung allein über die elektrische Maschine 12.2a zur Bereitstellung eines ersten Leistungsanteiles für den hydrodynamischen Getriebeteil 15.2a und zur weiteren Übertragung bis zum Ausgang 7.2a und des weiteren in Form eines zweiten Leistungsanteils zum Schleppen der mit dem Eingang 6.2a gekoppel- ten Verbrennungskraftmaschine führen würde. Des weiteren würde bei direktemGeneration of the drive power solely via the electric machine 12.2a to provide a first power component for the hydrodynamic transmission part 15.2a and for further transmission to the output 7.2a and further in the form of a second power component for towing the internal combustion engine coupled to the input 6.2a would lead. Furthermore, with direct
Durchtrieb zwischen Verbrennungskraftmaschine und Eingang 6.2a die elektrische Maschine 12.2a im Generatorbetrieb betrieben. Dieser führt dazu, daß ebenfalls nur ein Teil der Leistung, welche von der Verbrennungskraftmaschine bereitgestellt wird, am Abtrieb 7.2a abgenommen werden kann und ein weiterer zweiter Teil aufgrund des Generatorbetriebes der elektrischen Maschine 12.2a beispielsweise wieder in elektrische Leistung umgewandelt oder ein Gegenmoment erzeugt wird. Zur Vermeidung des ersten Problems und zur Gewährleistung auch eines autarken elektrischen Antriebes über die elektrische Antriebsmaschine 12.2a ist eine schaltbare Kupplung 4.2a als Trennkupplung vorgesehen. Diese ist gemäß Figur 2a zur Antriebseinheit 2 gehörig ausgeführt und dem Eingang 6.2a zugeordnet, jedoch außerhalb des Gehäuses 11.2a. Eine andere Möglichkeit besteht gemäß Figur 2b darin, die schaltbare Kupplung 4.2b im Getriebegehäuse 11.2b der Getriebebaueinheit 5.2b der Antriebseinheit 2.2b zu integrieren. Der restliche Grundaufbau entspricht dem in der Figur 2a beschriebenen, weshalb für gleiche Elemente die gleichen Bezugszeichen verwendet werden, unter Hinzufügung des entsprechenden Figurenverweises. Zur Vermeidung von Verlustleistung durch Mitschleppen des Rotors kann dieser ebenfalls mittels einer schaltbaren Kupplung, beispielswesie vom Antriebsstrang getrennt werden, ohne die Leistungsübertragung zwischen Eingang 6.2b und Ausgang 7.2b zu unterbre- chen, wenn der Eingang 6.2b an eine Antriebsmaschine, insbesondere Verbrennungskraftmaschine gekoppelt ist. In diesem Fall ist die schaltbare Kupplung 33.2b vorzugsweise konstruktiv im Rotor integriert, das heißt der Rotor 13.2b wird über die schaltbare Kupplung 33 auf einer mit dem Eingang 6.2a gekoppelten Welle beziehungsweise diesem selbst gelagert.Through drive between the internal combustion engine and input 6.2a, the electrical machine 12.2a is operated in generator mode. The result of this is that only part of the power provided by the internal combustion engine can also be taken off at the output 7.2a and a further second part, for example due to the generator operation of the electrical machine 12.2a, is converted back into electrical power or a counter torque is generated , In order to avoid the first problem and also to ensure an autonomous electric drive via the electric drive machine 12.2a, a switchable clutch 4.2a is provided as a separating clutch. According to FIG. 2a, this is the drive unit 2 properly executed and assigned to the input 6.2a, but outside the housing 11.2a. Another possibility according to FIG. 2b is to integrate the switchable clutch 4.2b in the gear housing 11.2b of the gear unit 5.2b of the drive unit 2.2b. The rest of the basic structure corresponds to that described in FIG. 2a, which is why the same reference numerals are used for the same elements, with the addition of the corresponding figure reference. To avoid power loss due to entraining the rotor, it can also be separated by means of a switchable clutch, for example from the drive train, without interrupting the power transmission between input 6.2b and output 7.2b if the input 6.2b is coupled to a drive machine, in particular an internal combustion engine is. In this case, the switchable clutch 33.2b is preferably structurally integrated in the rotor, that is to say the rotor 13.2b is supported via the switchable clutch 33 on a shaft coupled to the input 6.2a or to the latter itself.
Die Figur 2c verdeutlicht eine weitere Ausführung einer erfindungsgemäß gestalteten Antriebseinheit 2.2c. Bei dieser ist die Getriebebaueinheit 5.2c ebenfalls als Verbundgetriebe, umfassend einen hydrodynamischen Getriebeteil 15.2c und einem mechanischen Getriebeteil 16.2c beispielsweise in Form von Nachschaltstufen aus- geführt. Der hydrodynamische Getriebeteil 15.2c ist als hydrodynamische KupplungFIG. 2c illustrates a further embodiment of a drive unit 2.2c designed according to the invention. In this case, the gear unit 5.2c is also designed as a compound gear, comprising a hydrodynamic gear part 15.2c and a mechanical gear part 16.2c, for example in the form of secondary shift stages. The hydrodynamic transmission part 15.2c is a hydrodynamic coupling
18.2c ausgeführt. Denkbar ist auch die Ausgestaltung als hydrodynamischer Dreh- zahl-/Drehmomentwandler. Ebenfalls vorgesehen ist eine schaltbare Kupplung 22.2c in Form einer Überbrückungskupplung zur Realisierung des mechanischen Durchtriebes zwischen einem Eingang 6.2c und dem Abtrieb des hydrodynamischen Ge- triebeteils 15, insbesondere bei Ausgestaltung als hydrodynamische Kupplung 18 dem Sekundärrad 23.2c. Die elektrische Maschine 12.2c ist im dargestellten Fall räumlich hinter dem hydrodynamischen Geriebeteil 15.2c angeordnet und in Leistungsflußrichtung betrachtet vor dem mechanischen Getriebeteil 16.2c. Insbesondere ist der Rotor 13.2c drehfest mit dem Abtrieb, insbesondere dem Sekundärrad 23.3c beziehungsweise mit einer mit diesem drehfest gekoppelten Welle verbunden.18.2c executed. It is also conceivable to design it as a hydrodynamic speed / torque converter. Also provided is a switchable clutch 22.2c in the form of a lock-up clutch for realizing the mechanical through-drive between an input 6.2c and the output of the hydrodynamic transmission part 15, in particular when configured as a hydrodynamic clutch 18 to the secondary wheel 23.2c. In the case shown, the electrical machine 12.2c is arranged spatially behind the hydrodynamic gear part 15.2c and viewed in front of the mechanical gear part 16.2c in the direction of power flow. In particular, the rotor 13.2c is non-rotatably connected to the output, in particular the secondary wheel 23.3c, or to a shaft which is non-rotatably coupled to it.
Dies gilt des weiteren auch für den Eingang der Nachschaltstufen 16.2c, welcher hier mit 24.2c bezeichnet ist. Der Ausgang 19.2c des mechanischen Getriebeteils 16.2c bildet dabei gleichzeitig auch den Ausgang 7.2c der Getriebebaueinheit 5.2c. Der Stator beziehungsweise die Statoreinheit 14.2c der elektrischen Maschine 12.2c ist im Gehäuse gelagert. Der Rotor 13.2c ist drehfest mit dem Abtrieb des hydrodynamischen Getriebeteils, insbesondere dem Sekundärrad 23.2c und dem Eingang 24.2c des mechanischen Getriebeteiles 16.2c gekoppelt. Eine vollständige Entkopplung der Antriebseinheit 2.2c von einer Antriebsmaschine in Form einer Verbrennungs- kraftmaschine, welche üblicherweise mit dem Eingang 6.2c verbunden ist, erfolgt bei der dargestellten Ausführung zum einen über die Lösung der schaltbaren Kupplung in Form der Überbrückungskupplung 22.2c und der Entleerung des Bauelementes des hydrodynamischen Getriebeteils, hier der hydrodynamischen Kupplung 18.2c. In diesem Fall kann somit auch eine weitere Trennkupplung, wie in den Figuren 2 und 2b dargestellt, in Form der schaltbaren Kupplung 4.2 verzichtet werden.This also applies to the input of the switching stages 16.2c, which is designated here as 24.2c. The output 19.2c of the mechanical gear part 16.2c also forms the output 7.2c of the gear unit 5.2c. The stator or the stator unit 14.2c of the electrical machine 12.2c is stored in the housing. The rotor 13.2c is non-rotatably coupled to the output of the hydrodynamic transmission part, in particular the secondary wheel 23.2c and the input 24.2c of the mechanical transmission part 16.2c. A complete decoupling of the drive unit 2.2c from a drive machine in the form of an internal combustion engine, which is usually connected to the input 6.2c, takes place in the embodiment shown, on the one hand, by releasing the switchable clutch in the form of the lock-up clutch 22.2c and emptying the Component of the hydrodynamic transmission part, here the hydrodynamic coupling 18.2c. In this case, a further separating clutch, as shown in FIGS. 2 and 2b, in the form of the switchable clutch 4.2 can also be dispensed with.
Die Figur 2d verdeutlicht eine weitere Ausführung einer erfindungsgemäß gestalteten Antriebseinheit 2.2d, bei welcher die elektrische Maschine 12.2d hinter dem mechanischen Getriebeteil 16.2c in Kraftflußrichtung betrachtet vom Eingang 6.2d zum Ausgang 7.2d angeordnet ist, und bei welchem der Rotor drehfest mit dem AusgangFIG. 2d illustrates a further embodiment of a drive unit 2.2d designed according to the invention, in which the electrical machine 12.2d is arranged behind the mechanical transmission part 16.2c, viewed in the direction of the force flow, from the input 6.2d to the output 7.2d, and in which the rotor rotates with the output
7.2d gekoppelt ist. Die elektrische Maschine 12.2d, welche als Elektromotor fungiert, wird dabei direkt auf der Abtriebswelle angeordnet, was den Vorteil bietet, daß die vorhandenen Schaltelemente in den Nachschaltstufen 16.2d den Kraftfluß unterbrechen können und die Antriebsmaschine somit vom Getriebe 5.2d abkuppeln können. Des weiteren kann die Unterbrechung der Leistungsübertragung auch durch das gleichzeitige Lösen der schaltbaren Kupplung 22.2d und Entleerung des hydrodynamischen Kreislaufes im hydrodynamischen Getriebeteil 15.2d erfolgen.7.2d is coupled. The electrical machine 12.2d, which functions as an electric motor, is arranged directly on the output shaft, which has the advantage that the existing switching elements in the secondary stages 16.2d can interrupt the flow of power and can thus uncouple the drive machine from the gearbox 5.2d. Furthermore, the power transmission can also be interrupted by simultaneously releasing the switchable clutch 22.2d and emptying the hydrodynamic circuit in the hydrodynamic transmission part 15.2d.
Die Figur 3 verdeutlicht anhand einer konkreten Getriebekonfiguration den Aufbau einer erfindungsgemäß gestalteten Antriebseinheit 2.3 in Form eines hydrodynamisch-mechanischen Verbundgetriebes 25 mit integrierter elektrischer Antriebsmaschine 3.3. Dieses umfaßt einen hydrodynamischen Getriebeteil 15.3 und einen mechanischen Getriebeteil 16.3. Der hydrodynamische Getriebeteil 15.3 umfaßt einen hydrodynamischen Drehzahl-/Drehmomentwandler 17.3 mit einem, mit dem Eingang 6.3 drehfest gekoppelten Primärrad P, einem Sekundärrad T und zwei Leiträdern L1 und L2. Der mechanische Getriebeteil 16.3 umfaßt einen mechanischen Drehzahl- ZDrehmomentwandler 26 und einen, diesem in Kraftflußrichtung im Traktionsbetrieb nachgeschalteten Gruppensatz 27. Der mechanische Drehzahl-ZDrehmomentwandler ist als abgewandelter Ravigneaux-Planetenradsatz ausgeführt. Dieser umfaßt einen ersten Planetenradsatz 28 und einen zweiten Planetenradsatz 29 und einen von beiden gemeinsam genutzten Planetenträger 30, welcher auch als Steg bezeichnet wird. Dieser stellt die Kopplung zwischen einem Getriebeelement des ersten und des zweiten Planetenradsatzes dar. Der erste Planetenradsatz 28 umfaßt ein Sonnenrad 28.1 , Planetenräder 28.2 und ein Hohlrad 28.3. Der zweite Planetenradsatz 29 umfaßt ein Sonnenrad 29.1 , Plantenräder 29.2 und ein Hohlrad 29.3. Der Gruppensatz 27 umfaßt wenigstens einen Planetenradsatz 31 , welcher ein Sonnenrad 31.1 , Planetenräder 31.2, ein Hohlrad 31.3 und einen Steg 31.4 aufweist.FIG. 3 illustrates the structure of a drive unit 2.3 designed according to the invention in the form of a hydrodynamic-mechanical compound transmission 25 with an integrated electric drive machine 3.3 using a specific gear configuration. This comprises a hydrodynamic gear part 15.3 and a mechanical gear part 16.3. The hydrodynamic transmission part 15.3 comprises a hydrodynamic speed / torque converter 17.3 with a primary wheel P, which is coupled to the input 6.3 in a rotationally fixed manner, a secondary wheel T and two guide wheels L1 and L2. The mechanical transmission part 16.3 comprises a mechanical speed-Z torque converter 26 and a group set 27 connected downstream in the direction of force flow in traction mode. The mechanical speed Z-torque converter is designed as a modified Ravigneaux planetary gear set. This includes one first planetary gear set 28 and a second planetary gear set 29 and a planet carrier 30 shared by both, which is also referred to as a web. This represents the coupling between a gear element of the first and the second planetary gear set. The first planetary gear set 28 comprises a sun gear 28.1, planet gears 28.2 and a ring gear 28.3. The second planetary gear set 29 comprises a sun gear 29.1, planet gears 29.2 and a ring gear 29.3. The groupset 27 comprises at least one planetary gear set 31, which has a sun gear 31.1, planetary gears 31.2, a ring gear 31.3 and a web 31.4.
Der hydrodynamische Getriebeteil 16.3, insbesondere das Primärrad P ist mit demThe hydrodynamic transmission part 16.3, in particular the primary wheel P, is connected to the
Eingang E, welcher wenigstens mittelbar mit einer, dem Antrieb dienenden Maschine koppelbar ist, vorzugsweise mit einem Schwungrad einer Verbrennungskraftmaschine drehfest verbunden. Das Sekundärrad T ist mit einer sogenannten Sekundärradwelle 32 drehfest verbunden. Um die Vorteile der hydrodynamischen Drehmoment- Übertragung mit Überbrückungskupplung 20.3 zu nutzen, welche im folgenden wären:Input E, which can be coupled at least indirectly with a machine serving to drive the drive, preferably with a flywheel of an internal combustion engine. The secondary wheel T is rotatably connected to a so-called secondary wheel shaft 32. To take advantage of the hydrodynamic torque transmission with lock-up clutch 20.3, which would be as follows:
selbsttätige stufenlose Einstellung des Verhältnisses zwischen der An- und Abtriebsdrehzahl entsprechenden Belastung auf der Abtriebseite;automatic continuous adjustment of the ratio between the load corresponding to the input and output speed on the output side;
zur Verfügung stehen des maximalen Drehmomentes für einen Anfahrvorgang mit hoher Beschleunigung;the maximum torque is available for a start-up process with high acceleration;
Möglichkeit der Wärmeabfuhr durch Fremd- oder Oberflächenkühlung;Possibility of heat dissipation through external or surface cooling;
Trennung des hydrodynamischen Drehzahl-ZDrehmomentwandlers 17.3 vom Abtrieb, insbesondere vom Fahrzeug bei kleinen Antriebsdrehzahlen und Übertragung eines geringen Restmomentes, so daß ein Abwürgen der Antriebsmaschine von der Antriebseite her nicht möglich ist;Separation of the hydrodynamic speed-Z torque converter 17.3 from the output, in particular from the vehicle at low drive speeds and transmission of a low residual torque, so that the drive machine cannot be stalled from the drive side;
verschleißfreie Leistungsübertragung;wear-free power transmission;
und gleichzeitig die Nachteile einer hydrodynamischen Leistungsübertragung zu vermeiden, welche im wesentlichen in einem oftmals nicht ausreichend erzielbaren Wirkungsgrad besteht, um mit einem hydrodynamischen Getriebe allein arbeiten zu können, da Verlustleistungsanteile, die sich aus Reibungs- und Stoßverlusten zusammensetzen die übertragbare Gesamtleistung vermindern und die erzielten Wandlungsbereiche für den Fahrzeugeinsatz oft nicht ausreichend sind, wird der hydrodynamischen Drehzahl-ZDrehmomentwandler 17.3 nur in den unteren Gangstufen, vorzugsweise nur während des Anfahrvorganges zur Leistungsübertragung genutzt. Zur Verbesserung des Übertragungswirkungsgrades wird dieser daher in höheren Leistungsbereichen aus der Leistungsübertragung herausgenommen, insbesondere durch die Überbrückungskupplung 22.3.and at the same time to avoid the disadvantages of a hydrodynamic power transmission, which in essence often cannot be achieved sufficiently Efficiency exists to be able to work with a hydrodynamic transmission alone, since power loss components, which are made up of friction and shock losses, reduce the total power that can be transmitted and the conversion ranges achieved are often not sufficient for vehicle use, the hydrodynamic speed-Z-torque converter 17.3 is only used in the lower gears, preferably only used during the start-up process for power transmission. To improve the transmission efficiency, it is therefore removed from the power transmission in higher power ranges, in particular by means of the lock-up clutch 22.3.
Die elektrische Maschine 12.3 ist räumlich zwischen dem Anfahrelement in Form des hydrodynamischen Drehzahl-ZDrehmomentwandlers 17.3 und dem mechanischen Drehzahl-ZDrehmomentwandler 26 angeordnet. Der Rotor 13.3 der elektrischen Antriebsmaschine 12.3 ist drehfest mit einem Element des mechanischen Drehzahl- ZDrehmomentwandlers 26 gekoppelt, hier dem gemeinsam genutzten Steg 30 und damit über den Planetenradsatz 31 der Nachschaltgruppe 27 mit dem Ausgang 7.2d. Der Stator ist im Gehäuse 11.3 gelagert. Bei dieser Ausführung ist der Rotor 13.3 zwar räumlich vor den Nachschaltstufen in Form des mechanischen Drehzahl- ZDrehmomentwandlers 26 und Gruppenschaltsatz 27 angeordnet, jedoch in Lei- stungsflußrichtung betrachtet zwischen Eingang 6.3 und Ausgang 7.3 steht dieser in direkter Triebverbundung mit einem Getriebeelement des mechanischen Drehzahl- ZDrehmomentwandlers 26. Bei Integration dieser Antriebseinheit 2.3 in einem Antriebssystem kann dabei der Eingang 6.3 beispielsweise mit einer Verbrennungskraftmaschine gekoppelt werden. Die elektrische Maschine 12.3 kann dabei bei Be- trachtung der Antriebseinheit 2.3 für sich allein auch als eigenständige Antriebsquelle für ein mit dem Ausgang 7.3 gekoppeltes Aggregat oder bei Einsatz in Fahrzeugen die zum Antrieb der Räder zwischen dem Ausgang 7.3 und diesem angeordneten Übertragungselementen antreiben. Auch beim Einsatz in Antriebssystemen wie in der Figur 1 dargestellt, das heißt Kopplung des Eingangs 6.3 mit einer Antriebsma- schine in Form einer Verbrennungskraftmaschine kann der Leistungsfluß zwischenThe electrical machine 12.3 is arranged spatially between the starting element in the form of the hydrodynamic speed-Z-torque converter 17.3 and the mechanical speed-Z-torque converter 26. The rotor 13.3 of the electric drive machine 12.3 is non-rotatably coupled to an element of the mechanical speed-Z-torque converter 26, here the shared web 30 and thus via the planetary gear set 31 of the downstream group 27 with the output 7.2d. The stator is mounted in the housing 11.3. In this embodiment, the rotor 13.3 is arranged spatially in front of the additional switching stages in the form of the mechanical speed-Z-torque converter 26 and group switching set 27, but viewed in the power flow direction between input 6.3 and output 7.3, this is in direct drive connection with a gear element of the mechanical speed-Z-torque converter 26. When this drive unit 2.3 is integrated in a drive system, the input 6.3 can be coupled to an internal combustion engine, for example. When considering the drive unit 2.3, the electrical machine 12.3 can also stand alone as an independent drive source for an assembly coupled to the output 7.3 or, when used in vehicles, drive the transmission elements arranged between the output 7.3 and this for driving the wheels. Even when used in drive systems as shown in FIG. 1, that is to say coupling the input 6.3 to a drive machine in the form of an internal combustion engine, the power flow can vary between
Verbrennungskraftmaschine und Antriebseinheit 2.3 vollständig durch Öffnen der schaltbaren Kupplung 22.3 und Entleerung des Kreislaufes des hydrodynamischen Bauelementes 17.3 erfolgen, so daß ein eigenständiger Antrieb über die elektrische Antriebsmaschine 12.3 gewährleistet werden kann. Des weiteren besteht die Möglichkeit bei Erzeugung der Antriebsleistung allein über die Verbrennungskraftmaschine gleichzeitig durch den generatorischen Betrieb der elektrischen Maschine 12.3 einen Teil der Leistung in ein Netz oder eine Spei- chereinheit als elektrische Energie einzuspeisen, welche jederzeit wieder abrufbar ist. Bei allen Ausführungen gemäß der Figuren 1 bis 3 bestehen unterschiedliche Möglichkeiten für die Bereitstellung der elektrischen Energie für die elektrische Antriebsmaschine. Diese Energie kann dabei aus Speichereinheiten in Form von Batterien, einer Brennstoffzelle oder Kondensatoren bereitsgestellt werden. Zusätzlich kann auch im Bremsbetrieb Leistung durch den generatorischen Betrieb der elektrischen Maschine 12.3 in eine Speichereinheit oder ein Netz eingespeist werden. Soll ein Mitschleppen des Rotors 13.3 verhindert werden, muß dieser von dem Getriebeelement entkoppelbar sein. Dies kan durch eine entsprechende schaltbare Kupplung 33.3, hier nur strichpunktiert angedeutet, realisiert werden. Ein weiterer wesentlichen Vorteil der erfϊndungsgemäßen Lösung besteht darin, daß bei Integration der elektrischen Maschine in der Getriebebaueinheit 5 dieser auch die Funktion eines elektrischen Retarders zugeordnet werden kann, das heißt auf eine separate Bremseinrichtung, beispielsweise in Form einer hydrodynamischen Bremse verzichtet werden kann und lediglich durch die Änderung der Bestromung und damit der magnetischen Felder eine Abbremsung des Rotors 13.3 und damit der mit diesem gekoppeltenInternal combustion engine and drive unit 2.3 take place completely by opening the switchable clutch 22.3 and emptying the circuit of the hydrodynamic component 17.3, so that an independent drive can be ensured via the electric drive machine 12.3. Furthermore, if the drive power is generated solely via the internal combustion engine, it is also possible to feed part of the power into a network or a storage unit as electrical energy, which can be called up again at any time, by the generator operation of the electrical machine 12.3. In all of the embodiments according to FIGS. 1 to 3, there are different possibilities for providing the electrical energy for the electrical drive machine. This energy can already be provided from storage units in the form of batteries, a fuel cell or capacitors. In addition, even in braking operation, power can be fed into a storage unit or a network through the generator operation of the electrical machine 12.3. If dragging of the rotor 13.3 is to be prevented, it must be possible to decouple it from the gear element. This can be achieved by means of a corresponding switchable clutch 33.3, here only indicated by dash-dotted lines. Another significant advantage of the solution according to the invention is that when the electrical machine is integrated in the gear unit 5, it can also be assigned the function of an electrical retarder, that is to say that a separate braking device, for example in the form of a hydrodynamic brake, can be dispensed with and only by the change in the current supply and thus the magnetic fields decelerate the rotor 13.3 and thus the one coupled to it
Elemente, insbesondere den Abtrieb 7.3 möglich wird. Die erfindungsgemäß gestaltete Antriebseinheit bietet somit eine Vielzahl von Möglichkeiten hinsichtlich der Erfüllung verschiedenster Funktionen. Die elektrische Antriebsmaschine 12 kann zum einen als Antriebsquelle, zum Starten der Verbrennungskraftmaschine, und Bereit- Stellungseinrichtung der Leistung zur Beschleunigung fungieren sowie auch durch entsprechende Ansteuerung das Fahren bei Kriechgeschwindigkeit steuern. Des weiteren kann über dieses Aggregat durch entsprechende Ansteuerung insbesondere Veränderung des magnetischen Flusses im entsprechend vom Stator aufgebauten Feld das Fahrzeug am Berg gehalten werden und unter anderem durch entspre- chende Steuerkonzeptionen durch die Rückgewinnung von Bremsenergie und entsprechende Wiederausnutzung ein abgasfreies Fahren, zum Beispiel beim Fahren in Fußgängerzonen ermöglicht werden. Ein weiterer wesentlicher Vorteil der erfindungsgemäßen Lösung besteht darin, daß bei vollständiger Unterbrechung des Kraftflusses zwischen dem Eingang 6 und der Verbrennungskraftmaschine bei allei- niger Leistungsbereitstellung über die elektrische Maschine 12 auch die Drehrichtung des Abtriebes 7 beeinflußt werden kann, insbesondere dadurch ein mechanischer Rückwärtsgang eingespart werden kann.Elements, in particular the output 7.3 is possible. The drive unit designed according to the invention thus offers a multitude of possibilities with regard to the fulfillment of various functions. The electric drive machine 12 can act as a drive source, for starting the internal combustion engine, and as a provision device for the power for acceleration, and can also control driving at creep speed by appropriate control. Furthermore, the vehicle can be kept on the mountain by means of appropriate control, in particular by changing the magnetic flux in the field built up by the stator, and, inter alia, by appropriate control concepts through the recovery of braking energy and appropriate reuse, emission-free driving, for example when driving in pedestrian zones. Another significant advantage of the solution according to the invention is that if the power flow between the input 6 and the internal combustion engine is completely interrupted, niger power supply via the electrical machine 12, the direction of rotation of the output 7 can be influenced, in particular a mechanical reverse gear can be saved.
Die Ansteuerung des Leistungsstellgliedes der elektrischen Maschine und der Getriebebaueinheit 5 kann dabei über eine gemeinsame Steuervorrichtung erfolgen, welche, hier nicht dargestellt, entweder im Getriebegehäuse, oder außen am Getriebegehäuse oder aber in räumlicher Entfernung dazu angeordnet ist. Ein weiterer wesentlicher Vorteil besteht darin, daß auch zur Kühlung der elektrischen Maschine das gleiche Kühlsystem wie für das Betriebsmittelversorgungssystem verwendet werden kann. The control of the power actuator of the electrical machine and the gear unit 5 can take place via a common control device, which, not shown here, is arranged either in the gear housing or on the outside of the gear housing or at a spatial distance from it. Another significant advantage is that the same cooling system can be used for cooling the electrical machine as for the equipment supply system.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Antriebssystem1 drive system
2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3 Antriebsmaschine2; 2.2a; 2.2b; 2.2c; 2.2d; 2.3 Drive machine
4; 4.2a; 4.2b schaltbare Kupplung4; 4.2a; 4.2b switchable clutch
5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3 Getriebebaueinheit5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3 Gear unit
6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3 Eingang6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3 Entrance
7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3 Ausgang7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3 Exit
8 Wellenstrang8 shaft line
9 Differential9 differential
10.1 ; 10.2 Räder10.1; 10.2 wheels
11 11.2a; 11.2b 11.2c 11.2d 11.3 Gehäuse11 11.2a; 11.2b 11.2c 11.2d 11.3 housing
12 12.2a; 12.2b 12.2c 12.2c 12.3 elektrische Maschine12 12.2a; 12.2b 12.2c 12.2c 12.3 electrical machine
13 13.2a; 13.2b 13.2c 13.2d 13.3 Rotor13 13.2a; 13.2b 13.2c 13.2d 13.3 rotor
14 14.2a; 14.2b 14.2c 14.2d 14.3 Statoreinheit14 14.2a; 14.2b 14.2c 14.2d 14.3 stator unit
15 15.2a; 15.2b 15.2c 15.2d 15.3 hydrodynamischer Getriebeteil15 15.2a; 15.2b 15.2c 15.2d 15.3 hydrodynamic gear part
16 16.2a; 16.2b 16.2c 16.2c 16.3 mechanischer Getriebeteil16 16.2a; 16.2b 16.2c 16.2c 16.3 mechanical gear part
17 17.2a; 17.2b 17.3 hydrodynamischer Drehzahl-17 17.2a; 17.2b 17.3 hydrodynamic speed
ZDrehmomentwandlerZDrehmomentwandler
18.2c; 18.2c hydrodynamische Kupplung18.2c; 18.2c hydrodynamic clutch
19 Ausgang19 exit
20 Antrieb20 drive
21.2a; 21.2b; 21.2c; 21.2d Primärrad21.2a; 21.2b; 21.2c; 21.2d primary wheel
22.2a; 22.2b; 22.2c; 22.2d; 22 .3 schaltbare Kupplung22.2a; 22.2b; 22.2c; 22.2d; 22 .3 switchable clutch
23.2a; 23.2b; 23.2c; 23.2d; 23 .3 Sekundärrad23.2a; 23.2b; 23.2c; 23.2d; 23 .3 secondary wheel
24.2c Eingang24.2c input
25 Verbundgetriebe25 compound gears
26 mechanischer Drehzahl- ZDrehmomentwandler26 mechanical speed-Z torque converter
27 Gruppensatz27 group set
28 erster Planetenradsatz28 first planetary gear set
28.1 Sonnenrad28.1 Sun gear
28 .2 Planetenrad 28.3 Hohlrad28 .2 planet gear 28.3 Ring gear
29 zweiter Planetenradsatz29 second planetary gear set
29.1 Sonnen rad29.1 sun wheel
29.2 Planetenrad29.2 planet gear
29.3 Hohlrad29.3 ring gear
30 Planetenträger30 planet carriers
31 Planetenradsatz31 planetary gear set
32 Sekundärwelle32 secondary shaft
33 schaltbare Kupplung 33 switchable clutch

Claims

Patentansprüche Patent claims
1. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) 1.1 mit einer Getriebebaueinheit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3), mit mindestens einem Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und mindestens einem Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) und einem Gehäuse (11 ; 11.2a; 11.2b; 11.2c; 11.2d; 11.3);1. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) 1.1 with a transmission unit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3), with at least one input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and at least one output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) and a housing (11; 11.2a; 11.2b; 11.2c; 11.2d; 11.3);
1.2 mit einer wenigstens einer wenigstens als Elektromotor betreibbaren elektri- sehen Maschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3), umfassend einen Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) und eine Statoreinheit (14; 14.2a; 14.2b; 14.2c; 14.2d; 14.3) gekennzeichnet durch die folgenden Merkmale:1.2 with at least one electric machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) that can be operated at least as an electric motor, comprising a rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3 ) and a stator unit (14; 14.2a; 14.2b; 14.2c; 14.2d; 14.3) characterized by the following features:
1.3 die elektrische Maschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) ist im Gehäuse (11 ; 11.2a; 11.2b; 11.2c; 11.2d; 11.3) der Getriebebaueinheit (5; 5.2a; 5.2b;1.3 the electrical machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) is in the housing (11; 11.2a; 11.2b; 11.2c; 11.2d; 11.3) of the transmission unit (5; 5.2a; 5.2 b;
5.2c; 5.2d; 5.3) integriert;5.2c; 5.2d; 5.3) integrated;
1.4 der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) der elektrischen Maschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) ist mit einem leistungsübertragenden Element zwischen dem Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und dem Aus- gang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) drehfest verbindbar.1.4 the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) of the electrical machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) is connected to a power-transmitting element between the input (6 ; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) can be connected in a rotationally fixed manner.
2. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 1 , dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) drehfest mit einem zwischen dem Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und dem Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) angeordneten leistungsübertragenden2. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 1, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) is rotationally fixed a power transmitting device arranged between the input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3).
Element verbunden ist.Element is connected.
3. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 1 , dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) lösbar über eine schaltbare Kupplung (33.2b; 33.3) mit einem zwischen dem Eingang (6;3. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 1, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) is detachable via a switchable clutch (33.2b; 33.3) with one between the input (6;
6.2a; 6.2b; 6.2c; 6.2d; 6.3) und dem Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) angeordneten leistungsübertragenden Element verbunden ist. 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) arranged power transmitting element is connected.
4. Antriebseinheit (2; 2.2b; 2.3) nach Anspruch 3, dadurch gekennzeichnet, daß die schaltbare Kupplung in radialer Richtung zwischen Getriebeelement und Rotor (13.2b; 13.3) angeordnet ist.4. Drive unit (2; 2.2b; 2.3) according to claim 3, characterized in that the switchable clutch is arranged in the radial direction between the transmission element and rotor (13.2b; 13.3).
5. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) fliegend auf einer mit einem leistungsübertragenden Element gekoppel- . ten Welle oder Verlängerung gelagert ist.5. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 3, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) flying on a coupled with a power transmitting element. th shaft or extension is mounted.
6. Antriebseinheit (2; 2.2b; 2.3) nach Anspruch 5, dadurch gekennzeichnet, daß die schaltbare Kupplung (33.2b; 33.3) räumlich in axialer Richtung zwischen Rotor (13.2b; 13.3) und Getriebeelemnt angeordnet ist.6. Drive unit (2; 2.2b; 2.3) according to claim 5, characterized in that the switchable clutch (33.2b; 33.3) is arranged spatially in the axial direction between the rotor (13.2b; 13.3) and the transmission element.
7. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d;7. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 4, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d;
13.3) auf einer beidseitig gelagerten Verlängerung oder nur dem Getriebeelement verbundenen Welle angeordnet ist.13.3) is arranged on an extension mounted on both sides or only connected to the gear element.
8. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d;8. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 7, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d;
13.3) in Leistungsübertragungsrichtung zwischen dem Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und dem Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) vor den leistungsübertragenden Elementen der Getriebebaueinheit angeordnet ist.13.3) in the power transmission direction between the input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) in front of the power-transmitting elements of the transmission unit is arranged.
9. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 8, dadurch gekennzeichnet, daß in Leistungsflußrichtung zwischen dem Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und dem Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) eine schaltbare Kupplung (4; 4.2a; 4.2b) zur Leistungsunterbrechung am Eingang oder vor dem ersten leistungsübertragenden Element angeordnet ist.9. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 8, characterized in that in the power flow direction between the input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3 ) and the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) a switchable clutch (4; 4.2a; 4.2b) for power interruption is arranged at the input or in front of the first power-transmitting element.
10. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 9, dadurch gekennzeichnet, daß die schaltbare Kupplung (4; 4.2a; 4.2b) im Gehäuse (11 ; 11.2a; 11.2b) des Getriebes (5; 5.2a; 5.2b) angeordnet ist. 10. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 9, characterized in that the switchable clutch (4; 4.2a; 4.2b) in the housing (11; 11.2a; 11.2 b) the transmission (5; 5.2a; 5.2b) is arranged.
11. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) in Leistungsflußrichtung vom Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) zum Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) den leistungsübertragenden Ele- menten nachgeordnet ist.11. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 7, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) is arranged downstream of the power-transmitting elements in the direction of power flow from the input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) to the output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3).
12. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) in Leistungsflußrichtung mit einem zwischen Eingang (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) und Ausgang (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3) angeordneten12. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 7, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) in the direction of power flow with one between input (6; 6.2a; 6.2b; 6.2c; 6.2d; 6.3) and output (7; 7.2a; 7.2b; 7.2c; 7.2d; 7.3).
Übertragungselement gekoppelt ist.Transmission element is coupled.
13. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Getriebebaueinheit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) als hydrodynamisch-mechanische Verbundgetriebebaueinheit ausgeführt ist, umfassend einen ersten hydrodynamischen Getriebeteil (15; 15.2a; 15.2b; 15.2c; 15.2d; 15.3) und einen zweiten, diesem nachgeschalteten mechanischen Getriebeteil (16; 16.2a; 16.2b; 16.2c; 16.2d; 16.3).13. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 12, characterized in that the transmission unit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) is designed as a hydrodynamic-mechanical composite transmission unit, comprising a first hydrodynamic transmission part (15; 15.2a; 15.2b; 15.2c; 15.2d; 15.3) and a second mechanical transmission part (16; 16.2a; 16.2b; 16.2) connected downstream of this c; 16.2d; 16.3).
14. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 13, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) der elektrischen Antriebsmaschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) räumlich in axialer Richtung zwischen dem hydrodynamischen (15; 15.2a; 15.2b; 15.2c; 15.2d; 15.3) und dem mechanischen Getriebeteil (16; 16.2a; 16.2b; 16.2c; 16.2d; 16.3) angeordnet ist.14. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 13, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) of the electrical Drive machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) spatially in the axial direction between the hydrodynamic (15; 15.2a; 15.2b; 15.2c; 15.2d; 15.3) and the mechanical transmission part (16; 16.2 a; 16.2b; 16.2c; 16.2d; 16.3) is arranged.
15. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 14, dadurch gekennzeichnet, daß der Rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) drehfest mit dem Eingang (24.2c) oder mit einem in Kraftflußrichtung dahinter liegen- den Element des mechanischen Getriebeteils (16; 16.2a; 16.2b; 16.2c; 16.2d;15. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 14, characterized in that the rotor (13; 13.2a; 13.2b; 13.2c; 13.2d; 13.3) is rotationally fixed the input (24.2c) or with an element of the mechanical transmission part (16; 16.2a; 16.2b; 16.2c; 16.2d) located behind it in the direction of power flow;
16.3) verbunden ist.16.3) is connected.
16. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Getriebebaueinheit (5; 5.2a; 5.2b; 16. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 15, characterized in that the transmission unit (5; 5.2a; 5.2b;
5.2c; 5.2d; 5.3) ein Automatgetriebe ist und diesem eine Steuervorrichtung zugeordnet ist.5.2c; 5.2d; 5.3) is an automatic transmission and a control device is assigned to it.
17. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach Anspruch 16, dadurch gekennzeichnet, daß die Steuereinheit gemeinsam von der Getriebebaueinheit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) und der elektrischen Maschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) genutzt wird.17. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to claim 16, characterized in that the control unit is shared by the transmission unit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) and the electrical machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) is used.
18. Antriebseinheit nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Getriebebaueinheit ein automatisiertes Schaltgetriebe ist.18. Drive unit according to one of claims 1 to 15, characterized in that the transmission unit is an automated manual transmission.
19. Antriebseinheit nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Getriebebaueinheit ein stufenloses Getriebe ist.19. Drive unit according to one of claims 1 to 15, characterized in that the transmission unit is a continuously variable transmission.
20. Antriebseinheit nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Getriebebaueinheit ein Schaltgetriebe ist.20. Drive unit according to one of claims 1 to 15, characterized in that the transmission unit is a manual transmission.
21. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß die Getriebebaueinheit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) ein Betriebssteuer- und/oder Schmiermittelversorgungssystem aufweist, welchem eine Kühleinrichtung zugeordnet ist und daß die Kühleinrichtung auch zur Kühlung der elektrischen Antriebsmaschine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3) genutzt wird.21. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 20, characterized in that the transmission unit (5; 5.2a; 5.2b; 5.2c; 5.2d; 5.3) has an operating control and / or lubricant supply system, to which a cooling device is assigned and that the cooling device is also used to cool the electric drive machine (12; 12.2a; 12.2b; 12.2c; 12.2d; 12.3).
22. Antriebseinheit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 21 , dadurch gekennzeichnet, daß die Satoreinheit, umfassend nur einen Stator oder einen Innen- und einen Außenstator, wobei die einzelnen Statoren aus mehreren Einzelstatorelementen bestehen können, ortsfest im Gehäuse (11 ; 11.2a; 11.2b; 11.2c; 11.2d; 11.3) gelagert ist.22. Drive unit (2; 2.2a; 2.2.b; 2.2c; 2.2d; 2.3) according to one of claims 1 to 21, characterized in that the Sator unit comprising only a stator or an inner and an outer stator, wherein the individual stators can consist of several individual stator elements, is mounted stationary in the housing (11; 11.2a; 11.2b; 11.2c; 11.2d; 11.3).
23. Antriebseinheit (2; 2.2a; 2.b; 2.2c; 2.2d; 2.3) nach Anspruch 22, dadurch gekennzeichnet, daß einzelne Elemente der Statoreinheit (14; 14.2a; 14.2b; 14.2c; 14.2d; 14.3) direkt vom Gehäuse (11 ; 11.2a; 11.2b; 11.2c; 11.2d; 11.3) gebildet werden. 23. Drive unit (2; 2.2a; 2.b; 2.2c; 2.2d; 2.3) according to claim 22, characterized in that individual elements of the stator unit (14; 14.2a; 14.2b; 14.2c; 14.2d; 14.3) are formed directly by the housing (11; 11.2a; 11.2b; 11.2c; 11.2d; 11.3).
24. Antriebssystem (1) mit einer Antriebsmaschine (3) und einer, mit dieser koppelbaren Antriebseinheit (2; 2.2a; 2.b; 2.2c; 2.2d; 2.3) nach einem der Ansprüche 1 bis 20.24. Drive system (1) with a drive machine (3) and a drive unit (2; 2.2a; 2.b; 2.2c; 2.2d; 2.3) that can be coupled to it according to one of claims 1 to 20.
25. Antriebssystem (1) nach Anspruch 24, dadurch gekennzeichnet, daß die Antriebsmaschine (3) als Verbrennungskraftmaschine ausgeführt ist. 25. Drive system (1) according to claim 24, characterized in that the drive machine (3) is designed as an internal combustion engine.
PCT/EP2002/004269 2001-04-24 2002-04-18 Drive train with integrated electric motor WO2002085659A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01109973.6 2001-04-24
EP01109973A EP1253036A1 (en) 2001-04-24 2001-04-24 Transmission with integrated electric motor
DE10120174A DE10120174A1 (en) 2001-04-24 2001-04-24 Drive unit for vehicle hybrid drive, has rotor of electric motor coupled for rotation with transmission element of gearing in which electric motor is integrated
DE10120174.5 2001-04-24

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WO2003093045A1 (en) * 2002-04-29 2003-11-13 Voith Turbo Gmbh & Co. Kg Hybrid drive system comprising a hydrodynamic clutch, particularly for motor vehicles
EP1970239A1 (en) * 2007-03-13 2008-09-17 ZF Friedrichshafen AG Hybrid transmission system
WO2010025911A1 (en) 2008-09-03 2010-03-11 Voith Patent Gmbh Automatic transmission having hydrodynamic converter
FR3091838A1 (en) * 2019-01-22 2020-07-24 Valeo Embrayages Propulsion module of an electric or hybrid vehicle

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DE4225315A1 (en) * 1992-07-31 1994-02-03 Man Nutzfahrzeuge Ag Hybrid electric motor-IC engine-powered car - has ring gear on impeller of torque converter so that electric motor can drive wheels through gearbox.
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FR3091838A1 (en) * 2019-01-22 2020-07-24 Valeo Embrayages Propulsion module of an electric or hybrid vehicle
WO2020151996A1 (en) * 2019-01-22 2020-07-30 Valeo Embrayages Propulsion module for an electric or hybrid vehicle
CN113329907A (en) * 2019-01-22 2021-08-31 法雷奥离合器公司 Propulsion module for an electric or hybrid vehicle
CN114604106A (en) * 2019-01-22 2022-06-10 法雷奥离合器公司 Propulsion module for an electric or hybrid vehicle

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