CN1895944A - Control for increasing fuel economic benefit of mixed-kinetic automobile - Google Patents
Control for increasing fuel economic benefit of mixed-kinetic automobile Download PDFInfo
- Publication number
- CN1895944A CN1895944A CNA2005100169754A CN200510016975A CN1895944A CN 1895944 A CN1895944 A CN 1895944A CN A2005100169754 A CNA2005100169754 A CN A2005100169754A CN 200510016975 A CN200510016975 A CN 200510016975A CN 1895944 A CN1895944 A CN 1895944A
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- torsion
- moment
- electrical motor
- driving engine
- engine
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
A control method for increasing the economic efficiency of the fuel for the car with mixed power features that the output torque of engine is divided into 3 areas by the control system including computer, the mixed power system is summarized into 4 typical system running states according to the share degrees of said 3 areas to total output torque, and the torque sharing ratios of engine and motor are respectively found out according to 4 states.
Description
Technical field
The present invention relates to a kind of control method that improves fuel economic benefit of mixed-kinetic automobile, belong to hybrid vehicle control system technical field.
Background technology
In order to reduce the fuel consumption rate of automobile, in recent years, the automaker actively researches and develops the oil electric mixed dynamic automobile based on driving engine and electrical motor associating.Although the organization plan of hybrid vehicle has nothing in common with each other, but purpose all is to utilize driving engine and electrical motor strong point alternation or cooperative characteristics separately, mainly reduces fuel oil consumption by following three approach:
1, idle stop
2, the control driving engine is operated in high efficient area to greatest extent
3, braking energy reclaims
Hybrid architecture scheme based on different has different control methods to be developed.
Summary of the invention
The object of the present invention is to provide a kind of control method that improves fuel economic benefit of mixed-kinetic automobile,, can make driving engine remain on the high efficient area running, reach good fuel efficiency by the reasonable distribution of energy.Owing to can utilize moment of torsion generating more than needed, can make storage battery keep high charge condition (SOC) simultaneously, reduce idling generating requirement, increase the engine shutdown time, therefore further improve fuel efficiency.In addition, when high load capacity travelled, the battery charging state height had reduced electrically-charged requirement, so rideability also is improved simultaneously.Promptly guarantee further to improve the fuel efficiency of hybrid vehicle under the prerequisite of the tractive performance of car load in the vehicle ' process.
Technical scheme of the present invention is achieved in that the control method that improves fuel economic benefit of mixed-kinetic automobile, and the control system that comprises car-mounted computer is divided into 3 zones with the output torque of driving engine,
The ◇ driving engine hangs down the moment of torsion district;
◇ engine high-efficiency rate district;
The high moment of torsion of ◇ driving engine district.
The degree that can satisfy the total output torque requirement of hybrid power system according to these 3 zones reduces 4 kinds of exemplary systems running statees with hybrid power system, and at 4 kinds of exemplary systems running statees, 1. pump loss is big, compression ratio is low, burning is insufficient, so the efficient of driving engine is bad, only travel with electrical motor; 2. because the electrical motor deficiency so travel with driving engine, makes driving engine with the running of high efficiency moment of torsion, the surplus torque generating stores; 3. make driving engine keep efficient moment of torsion, replenish insufficient section with electrical motor; 4. because of not replenishing required torque, so driving engine is in the above regional work of high efficiency moment of torsion with electrical motor; Adopt different driving engines to share coefficient calculations driving engine, machine operation moment of torsion, its method is:
System running state is T 1.
PR1〉=T
B1, during total output torque that can meet the demands with the electrical motor nominal torque, K
E=0;
System running state is T 2.
PR1＜T
B1≤ T
EF1, total output torque of requirement is bigger than electrical motor nominal torque, than high efficiency moment of torsion hour, K
E=1;
System running state is T 3.
EF1＜T
B1≤ T
EF1+ T
PR1, total output torque of requirement is bigger than high efficiency moment of torsion, but can replenish when satisfying with electrical motor,
System running state is T 4.
EF1+ T
PR1＜T
B1, total output torque of requirement is bigger than high efficiency moment of torsion, and replenishes when also not satisfying with electrical motor,
Under the prerequisite of not considering the transmission device speed ratio, the moment of torsion of each assembly output is respectively:
T
E1＝T
B1×K
E
T
PM1＝T
B1×(1-K
E)
And, when system is in running state 2. the time:
T
MG＝-(T
B1-T
EF1)。
In the following formula:
T
EF1: engine high-efficiency rate moment of torsion, exist with ... engine rotary speed, be the numerical value of having distinguished.
T
PR1: the electrical motor nominal torque by battery charge rate, motor temperature, the decision of electrical motor rotative speed, is the numerical value of having distinguished.
T
B1: total output torque that hybrid power system requires by acceleration pedal aperture, speed of a motor vehicle decision, is the numerical value of having distinguished.
K
E: engine torque is shared coefficient, i.e. the percentum coefficient of total output torque of the relative hybrid power system requirement of driving engine burden moment of torsion.
T
E1: the moment of torsion of driving engine burden.
T
PM1: the moment of torsion of electrical motor burden.
T
MG: the moment of torsion of electrical generator.
3 dividing region of engine operation moment of torsion need to determine according to driving engine and the concrete distribution situation of motor high efficient area, are not limited only to by " maximum engine torque, engine high-efficiency rate moment of torsion, electrical motor nominal torque " to dividing on the border.
Good effect of the present invention is further to improve the fuel efficiency of hybrid vehicle.
Description of drawings
Fig. 1 is a basic principle schematic of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing;
Improving the control method of fuel economic benefit of mixed-kinetic automobile, is the method that a kind of output torque by driving engine in the car-mounted computer control system synthesis control hybrid vehicle and motor reaches the raising fuel efficiency.As shown in Figure 1, by electrical motor nominal torque, engine high-efficiency rate moment of torsion, maximum engine torque the output torque of driving engine is divided into 3 zones.The degree that can satisfy the total output torque requirement of hybrid power system according to these 3 zones reduces 4 kinds of exemplary systems running statees with hybrid power system.The information calculations that car-mounted computer utilizes acceleration pedal jaw opening sensor and car speed sensor to provide goes out total output torque that hybrid power system requires, and judge that hybrid power system is in one of 4 kinds of representative type running statees, 1. pump loss is big, compression ratio is low, burning is insufficient, so the efficient of driving engine is bad, only travel with electrical motor; 2. because the electrical motor deficiency so travel with driving engine, makes driving engine with the running of high efficiency moment of torsion, the surplus torque generating stores; 3. make driving engine keep efficient moment of torsion, replenish insufficient section with electrical motor; 4. because of not replenishing required torque, so driving engine is in the above regional work of high efficiency moment of torsion with electrical motor; By following method of calculating total output torque is distributed to driving engine and motor more afterwards:
System is in running state 1. time the (total output torque that can meet the demands with the electrical motor nominal torque), K
E=0;
System is in running state 2. the time (total output torque of requirement is bigger, littler than high efficiency moment of torsion than electrical motor nominal torque), K
E=1;
System is in running state 3. the time (total output torque of requirement is bigger than high efficiency moment of torsion, satisfies but can replenish with electrical motor),
System is in running state 4. time the (total output torque of requirement is bigger than high efficiency moment of torsion, and replenishes with electrical motor and also not satisfy),
Under the prerequisite of not considering the transmission device speed ratio, the moment of torsion of each assembly output is respectively:
T
E1＝T
B1×K
E
T
PM1＝T
B1×(1-K
E)
And, when system is in running state 2. the time:
T
MG＝-(T
B1-T
EF1)。
In the following formula:
T
EF1: engine high-efficiency rate moment of torsion.Existing with ... engine rotary speed, is the numerical value of having distinguished.
T
PR1: the electrical motor nominal torque.By battery charge rate, motor temperature, the decision of electrical motor rotative speed, be the numerical value of having distinguished.
T
B1: total output torque that hybrid power system requires.By acceleration pedal aperture, speed of a motor vehicle decision.Be the numerical value of having distinguished.
K
E: engine torque is shared coefficient, i.e. the percentum coefficient of total output torque of the relative hybrid power system requirement of driving engine burden moment of torsion.
T
E1: the moment of torsion of driving engine burden.
T
PM1: the moment of torsion of electrical motor burden.
T
MG: the moment of torsion of startup/electrical generator.
Claims (2)
1, improve the control method of fuel economic benefit of mixed-kinetic automobile, the control system that comprises car-mounted computer is divided into 3 zones with the output torque of driving engine,
The ◇ driving engine hangs down the moment of torsion district;
◇ engine high-efficiency rate district;
The high moment of torsion of ◇ driving engine district.
The degree that can satisfy the total output torque requirement of hybrid power system according to these 3 zones reduces 4 kinds of exemplary systems running statees with hybrid power system, at 4 kinds of exemplary systems running statees be, 1. pump loss is big, compression ratio is low, burning is insufficient, so the efficient of driving engine is bad, only travel with electrical motor; 2. because the electrical motor deficiency so travel with driving engine, makes driving engine with the running of high efficiency moment of torsion, the surplus torque generating stores; 3. make driving engine keep efficient moment of torsion, replenish insufficient section with electrical motor; 4. because of not replenishing required torque, so driving engine is in the above regional work of high efficiency moment of torsion with electrical motor; Adopt different driving engines to share coefficient calculations driving engine, machine operation moment of torsion, its method is:
System running state is T 1.
PR1〉=T
B1, during total output torque that can meet the demands with the electrical motor nominal torque, K
E=0;
System running state is T 2.
PR1＜T
B1≤ T
EF1, total output torque of requirement is bigger than electrical motor nominal torque, than high efficiency moment of torsion hour, K
E=1;
System running state is T 3.
EF1＜T
B1≤ T
EF1+ T
PR1, total output torque of requirement is bigger than high efficiency moment of torsion, but can replenish when satisfying with electrical motor,
System running state is T 4.
EF1+ T
PR1＜T
B1, total output torque of requirement is bigger than high efficiency moment of torsion, and replenishes when also not satisfying with electrical motor,
Under the prerequisite of not considering the transmission device speed ratio, the moment of torsion of each assembly output is respectively:
T
E1＝T
B1×K
E
T
PM1＝T
B1×(1-K
E)
And, when system is in running state 2. the time:
T
MG＝-(T
B1-T
EF1)。
In the following formula:
T
EF1: engine high-efficiency rate moment of torsion.Existing with ... engine rotary speed, is the numerical value of having distinguished.
T
PR1: the electrical motor nominal torque.By battery charge rate, motor temperature, the decision of electrical motor rotative speed, be the numerical value of having distinguished.
T
B1: total output torque that hybrid power system requires.By acceleration pedal aperture, speed of a motor vehicle decision.Be the numerical value of having distinguished.
K
E: engine torque is shared coefficient, i.e. the percentum coefficient of total output torque of the relative hybrid power system requirement of driving engine burden moment of torsion.
T
E1: the moment of torsion of driving engine burden.
T
PM1: the moment of torsion of electrical motor burden.
T
MG: the moment of torsion of startup/electrical generator.
2, a kind of control method that improves fuel economic benefit of mixed-kinetic automobile according to claim 1, it is characterized in that 3 dividing region of described engine operation moment of torsion need to determine that according to driving engine and the concrete distribution situation of motor high efficient area being not limited only to by maximum engine torque, engine high-efficiency rate moment of torsion, electrical motor nominal torque is that the border is divided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100169754A CN1895944A (en) | 2005-07-15 | 2005-07-15 | Control for increasing fuel economic benefit of mixed-kinetic automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100169754A CN1895944A (en) | 2005-07-15 | 2005-07-15 | Control for increasing fuel economic benefit of mixed-kinetic automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1895944A true CN1895944A (en) | 2007-01-17 |
Family
ID=37608635
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|---|---|---|---|
| CNA2005100169754A Pending CN1895944A (en) | 2005-07-15 | 2005-07-15 | Control for increasing fuel economic benefit of mixed-kinetic automobile |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009036606A1 (en) * | 2007-09-21 | 2009-03-26 | Guilin Geely Stars Oil-Electric Hybrid Engine Co., Ltd. | An economic operation method of an engine having servo control system |
| CN101457702A (en) * | 2007-11-02 | 2009-06-17 | 通用汽车环球科技运作公司 | Torque based crank control |
| WO2009074091A1 (en) * | 2007-12-05 | 2009-06-18 | Chery Automobile Co., Ltd. | A motor torque smoothing treatment method for hybrid power and a hybrid power system |
| CN102216533A (en) * | 2008-11-28 | 2011-10-12 | 住友重机械工业株式会社 | Method of controlling hybrid working machine and pump output limiting method for hybrid working machine |
| CN101284532B (en) * | 2007-12-28 | 2012-03-28 | 奇瑞汽车股份有限公司 | Control method of battery charge state SOC for hybrid electric vehicle |
| CN101568445B (en) * | 2007-02-01 | 2012-05-23 | 丰田自动车株式会社 | Electric vehicle control device |
| CN102649429A (en) * | 2012-04-27 | 2012-08-29 | 浙江吉利汽车研究院有限公司杭州分公司 | Auxiliary motive power control method and device of micro hybrid electric vehicles |
| CN101754879B (en) * | 2008-04-15 | 2013-06-19 | 丰田自动车株式会社 | Control apparatus of hybrid vehicle |
| CN103407361A (en) * | 2013-08-26 | 2013-11-27 | 西北工业大学 | ISG highly hybrid electric vehicle power assembly system and control method thereof |
| CN104781117A (en) * | 2013-01-22 | 2015-07-15 | 丰田自动车株式会社 | Controller of hybrid vehicle |
| CN104936841A (en) * | 2013-01-22 | 2015-09-23 | 丰田自动车株式会社 | Hybrid vehicle control device |
| CN105083262A (en) * | 2014-05-23 | 2015-11-25 | 福特环球技术公司 | Methods and systems for improving hybrid vehicle efficiency |
| CN105620466A (en) * | 2014-10-27 | 2016-06-01 | 北汽福田汽车股份有限公司 | Vehicle control method and system |
| CN103192824B (en) * | 2012-01-10 | 2016-12-28 | 福特全球技术公司 | For the method improving the fuel economy of plug-in hybrid electric vehicle |
| CN107035560A (en) * | 2017-05-18 | 2017-08-11 | 吉林大学 | Engine control system based on driver's type ONLINE RECOGNITION |
| CN107345500A (en) * | 2016-05-04 | 2017-11-14 | 福特环球技术公司 | Method and system for engine control |
| CN113978447A (en) * | 2021-10-27 | 2022-01-28 | 岚图汽车科技有限公司 | Torque control method and related equipment |
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2005
- 2005-07-15 CN CNA2005100169754A patent/CN1895944A/en active Pending
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| CN101568445B (en) * | 2007-02-01 | 2012-05-23 | 丰田自动车株式会社 | Electric vehicle control device |
| WO2009036606A1 (en) * | 2007-09-21 | 2009-03-26 | Guilin Geely Stars Oil-Electric Hybrid Engine Co., Ltd. | An economic operation method of an engine having servo control system |
| CN101457702A (en) * | 2007-11-02 | 2009-06-17 | 通用汽车环球科技运作公司 | Torque based crank control |
| WO2009074091A1 (en) * | 2007-12-05 | 2009-06-18 | Chery Automobile Co., Ltd. | A motor torque smoothing treatment method for hybrid power and a hybrid power system |
| US8798827B2 (en) | 2007-12-05 | 2014-08-05 | Chery Automobile Co., Ltd. | Motor torque smoothing treatment method for hybrid power and a hybrid power system |
| CN101284532B (en) * | 2007-12-28 | 2012-03-28 | 奇瑞汽车股份有限公司 | Control method of battery charge state SOC for hybrid electric vehicle |
| CN101754879B (en) * | 2008-04-15 | 2013-06-19 | 丰田自动车株式会社 | Control apparatus of hybrid vehicle |
| CN102216533B (en) * | 2008-11-28 | 2015-08-19 | 住友重机械工业株式会社 | The control method of hybrid-type working machine and the pump export-restriction method of hybrid-type working machine |
| CN102216533A (en) * | 2008-11-28 | 2011-10-12 | 住友重机械工业株式会社 | Method of controlling hybrid working machine and pump output limiting method for hybrid working machine |
| CN103192824B (en) * | 2012-01-10 | 2016-12-28 | 福特全球技术公司 | For the method improving the fuel economy of plug-in hybrid electric vehicle |
| US9580062B2 (en) | 2012-01-10 | 2017-02-28 | Ford Global Technologies, Llc | Method for increasing fuel economy of plug-in hybrid electric vehicles |
| CN102649429A (en) * | 2012-04-27 | 2012-08-29 | 浙江吉利汽车研究院有限公司杭州分公司 | Auxiliary motive power control method and device of micro hybrid electric vehicles |
| CN102649429B (en) * | 2012-04-27 | 2015-05-20 | 浙江吉利汽车研究院有限公司杭州分公司 | Auxiliary motive power control method and device of micro hybrid electric vehicles |
| CN104781117A (en) * | 2013-01-22 | 2015-07-15 | 丰田自动车株式会社 | Controller of hybrid vehicle |
| CN104781117B (en) * | 2013-01-22 | 2017-05-03 | 丰田自动车株式会社 | Controller of hybrid vehicle |
| CN104936841A (en) * | 2013-01-22 | 2015-09-23 | 丰田自动车株式会社 | Hybrid vehicle control device |
| CN104936841B (en) * | 2013-01-22 | 2017-06-09 | 丰田自动车株式会社 | The control device of motor vehicle driven by mixed power |
| US9616878B2 (en) | 2013-01-22 | 2017-04-11 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for hybrid vehicle |
| CN103407361A (en) * | 2013-08-26 | 2013-11-27 | 西北工业大学 | ISG highly hybrid electric vehicle power assembly system and control method thereof |
| CN105083262A (en) * | 2014-05-23 | 2015-11-25 | 福特环球技术公司 | Methods and systems for improving hybrid vehicle efficiency |
| CN105083262B (en) * | 2014-05-23 | 2019-03-12 | 福特环球技术公司 | For improving the method and system of hybrid vehicle efficiency |
| CN105620466A (en) * | 2014-10-27 | 2016-06-01 | 北汽福田汽车股份有限公司 | Vehicle control method and system |
| CN105620466B (en) * | 2014-10-27 | 2018-05-11 | 北京宝沃汽车有限公司 | The control method and system of vehicle |
| CN107345500A (en) * | 2016-05-04 | 2017-11-14 | 福特环球技术公司 | Method and system for engine control |
| CN107345500B (en) * | 2016-05-04 | 2022-01-14 | 福特环球技术公司 | Method and system for engine control |
| CN107035560A (en) * | 2017-05-18 | 2017-08-11 | 吉林大学 | Engine control system based on driver's type ONLINE RECOGNITION |
| CN107035560B (en) * | 2017-05-18 | 2020-02-07 | 吉林大学 | Engine control system based on driver type online identification |
| CN113978447A (en) * | 2021-10-27 | 2022-01-28 | 岚图汽车科技有限公司 | Torque control method and related equipment |
| CN113978447B (en) * | 2021-10-27 | 2024-01-09 | 岚图汽车科技有限公司 | Torque control method and related equipment |
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Effective date of registration: 20111103 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Applicant after: China FAW Group Corporation Address before: Dongfeng Street Lvyuan District of Jilin province 130011 Changchun No. 83 Applicant before: China FAW Group Corporation |