JPH01297363A - Alarm device for automobile - Google Patents

Abstract

PURPOSE:To previously prevent the danger of movement of a vehicle on an inclined ground by operating an alarm means when the vehicle is in inclined state, independently of the operation state of an ignition key switch and a brake means is not in operation. CONSTITUTION:When an ignition key switch 5 is in ON-state, the logic calculation part 7a of a controller 7 reads in the output signals of an inclination sensor 1 for detecting the inclination in the longitudinal direction of a vehicle, car speed sensor 2, foot brake 3, parking brake 4, and a shift lever switch 6. When the vehicle is in stop state in the inclined state in the longitudinal direction, if the both brakes 3 and 4 are not in operation, and a shift lever is judged to be at a neutral position, a buzzer 8 is operated through a driving circuit part 7b. Further, when an ignition key switch 5 is in-OFF, control is performed so that the buzzer 8 is operated, if the vehicle is inclined in the longitudinal direction, and the parking brake 4 is not in operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automobile warning device that issues a warning in advance to a driver by detecting the inclination of an automobile.

[Conventional technology]

FIG. 3 is a block diagram of a conventional vehicle movement alarm device disclosed in, for example, Japanese Unexamined Patent Publication No. 52-100638. In the figure, 2 is a vehicle speed sensor, 4 is a parking brake, and 7a is a logic operation unit. , 7b is a drive circuit section, and 8 is a buzzer.

Next, the operation will be explained. When the vehicle stops and the vehicle starts to move while the parking brake 4 is in operation, the logic operation section 7a transmits the operation results to the drive circuit section 7 based on the output signals of the parking brake 4 and the vehicle speed detection sensor 2.
b, generates an alarm signal, and the buzzer 8 sounds to issue a warning to the driver.

[Problem to be solved by the invention]

Conventional vehicle movement warning devices are configured as described above, so even if there is a slope in the front and rear of the vehicle, if the parking brake 4 is not activated, the warning will not be issued and there is a risk that the vehicle will start moving. There is sex.

Also, even if the parking brake is activated,
There was a problem in that if an alarm was issued after the vehicle started moving, it would be meaningless if the driver was unlucky enough to be outside the vehicle.

This invention was made in order to solve the above-mentioned problems with the conventional technology.It allows the driver to forewarn the danger of the vehicle moving against the driver's will on a slope, and allows the driver to objectively assess the condition of the vehicle. The purpose of this invention is to obtain a highly reliable automobile alarm system that can be used to detect

[Means for Solving the Problems] The automobile alarm system according to the present invention can be used when the ignition key switch is in the ON state and the vehicle is tilted in the longitudinal direction, and when the vehicle is stopped and the braking means is not operating; The vehicle is equipped with a control device that drives the warning means when the vehicle is tilted in the longitudinal direction and the braking means is not operating when the ignition key switch is in the OFF state.

[Function] The control device according to the present invention tilts the vehicle in the longitudinal direction when the ignition key switch is in the ON state.
If the braking means is inactive even though the vehicle is stopped, the brake '4n device activates the warning means to issue a warning to the driver, and if the ignition key switch is in the OFF state, When the braking means is not operating even though the vehicle is tilted in the longitudinal direction, the control device drives the warning means to warn the driver in advance.

[Example] Hereinafter, an example of the present invention will be described based on FIG. 1. In FIG. 1, reference numeral 1 denotes a tilt sensor as a tilt detection means for detecting the front and rear tilt of the vehicle, and when the front and rear tilt of the vehicle is detected, the output signal is turned ON.

2 is a vehicle speed sensor as a vehicle speed detection means for detecting the running state of the vehicle, and when the vehicle is running, the output signal is ON.
state.

3 is a foot brake that brakes the vehicle, 4 is a parking brake that also brakes the vehicle, and foot brake 3
, the parking brake 4 constitutes a braking means. When the foot brake 3 and parking brake 4 are in operation, each output signal is in an ON state.

5 is an ignition key switch that operates the engine, and this ignition key switch 5 is ON.
The output signal is in the ON state when .

Reference numeral 6 denotes a shift lever switch for determining the position of the shift lever for operating the transmission, and when the shift lever is in the neutral position, the output signal is in the ON state.

7 is a control device, 7a is the various sensors mentioned above, that is, an inclination sensor 1, a vehicle speed sensor 2, a foot brake 3,
Parking brake 4, ignition key switch 5
, a logical operation section for performing logical operations upon receiving the output signal of the shift lever switch 6, 7b a drive circuit section for driving an alarm, and 8 a buzzer as an alarm means.

Next, the operation will be explained with reference to FIG. 2.

FIG. 2 is a flowchart showing the flow of calculations in the logic operation section 7a. Read the output signal from (step S201).

The case where the ignition key switch 5 is in the ON state will be explained. The logic operation unit 7a takes in the output signal of the tilt sensor 1 (step 5202), and if the output signal of the tilt sensor 1 is OFF, the operation returns to the beginning of the flow of logical operations (STRAT (step 5200)) and continues the operation. repeat.

If the output signal of the inclination sensor 1 is ON, then the output signal of the vehicle speed sensor 2 is judged in step 203, and if it is ON, the calculation returns to 5TART (step 5200), and if it is OFF, In step 5204, the output signals of the fund brake 3 and parking brake 4 are read.

At this time, the logic operation unit 7a determines the signal resulting from the logical sum of the output signals of the foot brake 3 and the parking brake 4 (not shown). In this step 5204, the output signal of the foot brake 3 or the parking brake 4 is If it is ON, the calculation returns to 5TRAT, and if it is OFF, the output signal of the shift lever switch 6 is read (step 5206).

At this time, the output signal of the shift lever switch 6 is OFF.
If so, the calculation returns to 5TRAT (S200'), and if this output signal is ON, the logic operation section 7a outputs a signal to the drive circuit section 7b (step 5207), and the drive circuit section 7b generates an alarm instruction signal. Then, the buzzer 8 sounds to issue a warning to the driver. And the calculation is 5TflA
Return to T (step 5200).

Next, a case where the ignition key switch 5 is in the OFF state will be described. The logic operation unit 7a takes in the output signal of the tilt sensor l (step 5211), and if this output signal is OFF, 5TRAT (step 5200).
), the operation returns to the beginning of the flow of logical operations (STRAT
(Step 3200) Return to 1 and repeat the calculation.

If the output signal of the inclination sensor 1 is ON, then the output signal of the parking brake 4 is read (step 3212). If this output signal is OFF, in step 5213, the logic operation unit 7a outputs a signal to the drive circuit unit 7b, and the drive circuit unit 7b generates an alarm instruction signal and sounds the buzzer 8 to issue a warning to the driver. . And is the operation STI? A.T.
Return to (step S200).

Further, if the output signal of the parking brake 4 is ON in step 5212, the output signal of the shift lever switch 6 is read in step 5214. This output signal is O
If it is FF, the calculation returns to 5TRAT (step 5200).

If this output signal is ON, the logic operation section 7a outputs a signal to the drive circuit section 7b (step S215), and the drive circuit section 7b generates an alarm instruction signal and sounds the buzzer 8 to warn the driver. emits. Then, return to 11ii'Jγ5TRATCSfy7'S200).

In the above embodiment, the case where the buzzer 8 is used as the warning means is exemplified, but instead of the buzzer 8, a lamp may be used to display the warning.

〔Effect of the invention〕

As described above, according to the present invention, when the ignition key switch is in the ON state, the vehicle is tilted in the longitudinal direction, the vehicle is stopped, and the braking means is not operating, the control device drives the alarm means. When the ignition key switch is in the OFF state, the control device is configured to activate the warning means when the vehicle is tilted in the longitudinal direction and the braking means is not in operation. Sometimes, if the braking device is not activated even though there is a slope in the front and rear of the vehicle, the vehicle may start moving and the driver can be warned of the risk of an accident, and the driver can objectively assess the condition of the vehicle. This has the effect of obtaining a highly reliable product.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of an automobile alarm system according to an embodiment of the present invention, Fig. 2 is a flowchart showing the flow of operation of the logic operation section in the same embodiment, and Fig. 3 is a conventional movement of a vehicle. FIG. 3 is a block diagram of the alarm device. ■... Tilt sensor, 2... Vehicle speed sensor, 3... Foot brake, 4... Parking brake, 5...
Ignition key switch, 6...shift lever switch, 7...control device, 8...buzzer. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Diagram 3 procedural amendment (voluntary)

Claims (1)

[Claims] an ignition key switch for starting the engine; a control means for stopping the vehicle; a vehicle speed detection means for detecting the running state of the vehicle; When the key switch is in the ON state, the vehicle is tilted in the longitudinal direction, the vehicle is stopped, and the control device is not operating, the alarm means is activated, and the ignition key switch is in the ON state. A control device for driving an alarm means when the vehicle is tilted in the longitudinal direction and the braking means is not operating in an OFF state.