JPH0245071Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an accelerator pedal control device for an automobile that allows the vehicle to start on condition that the positions of the accelerator pedal and the brake pedal are confirmed by depressing the pedals.

BACKGROUND ART Conventionally, as shown in the flowchart of Fig. 4, a device has been proposed that performs emergency braking based on the detection of a peculiar movement of the accelerator pedal (in 1987).
-Refer to Publication No. 47762).

That is, in this device, first, in a step, it is determined whether the accelerator pedal depression speed is too high than the initial setting, and if it is too fast, the charger is stopped. Furthermore, in the step, it is determined whether the accelerator pedal is depressed too far from the initial position, and if it is too deep, the charger is stopped (step) and the brake system is activated (step).
In other words, in this example, abnormal depression is determined from the depression speed and depth of the depression position and the brake system is activated. Braking is performed by the operation of the brake system.

Problems that the invention aims to solve: However, since there are large individual differences in the form of accelerator pedal depression operation at the time of starting, the accelerator pedal operation, which has individual differences, can be accurately determined based on the depression speed and depression position. In order to determine that the pedal is abnormally pressed, it is necessary to comprehensively consider the driving behavior of more drivers when setting the determination criteria. For this reason, the amount of data needed to set the above-mentioned discrimination criteria is enormous, and not only does data processing require a great deal of time and effort, but it is also necessary to use a uniform standard to determine whether accelerator operation is normal or abnormal, as there are individual differences. This was extremely difficult and could not be put into practical use immediately.

The present invention was developed in view of these conventional problems, and by checking the positions of the accelerator and brake pedals before starting the vehicle, it is possible to operate the accelerator pedal with the same behavior as operating the brake pedal, for example. An object of the present invention is to provide an accelerator pedal control device that makes it possible to practically prevent such abnormal depression from occurring.

Means for Solving the Problems In order to solve the above problems, the accelerator pedal device according to the present invention includes a brake switch that is closed when the brake pedal is depressed, and an automatic transmission operating device. Position detection means detects that the shift lever is in the stop position and detects that the shift lever has been shifted to the drive position and outputs an unlock signal, and a lock position that prevents the accelerator pedal from being depressed and allows the accelerator pedal to be depressed. It is composed of an accelerator pedal lock device that operates to the unlock position, and a control circuit that drives and controls the accelerator pedal device to the unlock position only by the closing operation of the brake switch and the unlock signal output from the position detection means. has been done.

Effect In the above configuration, the condition is that the brake switch is operated to close and an unlock signal is input, in other words, the brake pedal is depressed and the shift lever is shifted from the stop position to the drive position. Only when these two conditions are satisfied, the accelerator pedal device is brought to the unlocked position by the drive control of the control circuit, and depression of the accelerator pedal is permitted. Therefore, when the driver starts the vehicle, unless the driver actually depresses the brake pedal and shifts the shift lever to the driving position, the accelerator pedal will remain locked and the accelerator cannot be operated. Therefore, before operating the accelerator, the driver is required to press down on the brake pedal, thereby forcing the driver to physically confirm the position of the brake pedal, and confirming the position of the brake pedal. The positional relationship with the accelerator pedal, which is permitted to be depressed later, is clearly recognized.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. That is, as shown in FIG. 1, a shift operating device 11 is linked to the automatic transmission 10. As shown in FIG. 2, the speed change operation device 11 has a detent plate 13 fixed to the vehicle body 12, and the detent plate 13 has an opening 15 in which a positioning recess 14 is formed in the upper edge. It is formed. The positioning recess 14 has stop positions P (parking) and N (neutral).
and driving positions R (reverse), D (drive), 2 (second), and 1 (first) are set. A shift lever 16 is pivotally supported at the lower end of the detent plate 13, and inside the shift lever 16 is a rod 1 that is moved downward by pressing a push button (not shown).
7 is loosely inserted. A detent pin 18 is protruded from the lower end of the rod 17, and the detent pin 18 abuts on the positioning recess 14. Furthermore, a position switch 19 serving as a position detection means is attached to the detent plate 13. The position switch 19 is turned off by contacting the protrusion 20 of the shift lever 16 located at the P position, and is separated from the protrusion 20 when the shift lever 16 is shifted from the P position to another position. It has a function of inputting an ON signal as an unlock signal to the control circuit 21. An ignition switch 23 and a brake switch 24 connected in series to a grounded battery 22 are connected to an input port of the control circuit 21.
4 only when the brake pedal 25 is depressed
A normally open type that operates ON (closed) is used. On the other hand, an accelerator pedal lock device 26 is connected to the output port of the control circuit 21. The accelerator pedal lock device 26 is an electromagnetic actuator 27.
and the plunger 28 of the electromagnetic actuator 27.
It consists of a stopper piece 30 that is locked to and rotatable around a pin 29. The stopper piece 30 is at the lock position L, where the automatic end is brought into contact with the lower surface of the accelerator pedal 31 to prevent the accelerator pedal 31 from being depressed, as shown by the solid line, and at the lock position L, where the automatic end is brought into contact with the lower surface of the accelerator pedal 31 to prevent the accelerator pedal 31 from being depressed. It is rotatably supported to an unlock position U which is spaced apart from.

Next, the operation of this embodiment according to the above configuration will be explained according to the flowchart shown in FIG. In other words, turn on the ignition switch 23
(step), the control circuit 21 starts up,
A current flows through the electromagnetic actuator 27, and the electromagnetic actuator is excited. As a result, the plunger 28 is retracted, the stopper piece 30 is rotated to the lock position L, and the accelerator pedal 31 is prevented from being depressed (step). Next, it is determined whether the brake switch 24 is ON or OFF, and if it is OFF, that is, if the brake pedal 25 is not depressed, the loop of steps is repeated. Therefore, unless the brake pedal 25 is continuously depressed, it is not possible to proceed to the routine below step, and thus the driver is obliged to depress the brake pedal 25 before starting the vehicle. Then, when the brake pedal 25 is actually depressed, it becomes possible to determine the next step, and by this depression operation, the driver physically confirms the position of the brake pedal 25.

Next, in step, it is determined whether the shift lever 16 is in the P position or whether the shift operation has been performed from the P position to another position.While the shift lever 16 is in the P position, the loop from step to is repeated. When the shift operation is performed, the step is processed, that is, the accelerator pedal 31 is unlocked. Therefore, if the first condition is to press the brake pedal 25, and the second condition is to shift the shift lever 16 from the P position to another position, then
The processing of the step is executed only when the first and second conditions are satisfied. In this step, based on the satisfaction of the first and second conditions, the current to the electromagnetic actuator 27 is cut off, and the electromagnetic actuator 27 performs a demagnetizing operation. Therefore, the plunger 28 extends, the stopper piece 30 rotates to the unlock position U, and the accelerator pedal 31 can be depressed (step). At this time, the driver presses the brake pedal 25 under the first condition described above. Since the position of the accelerator pedal 31 is physically confirmed, the position of the accelerator pedal 31 can be clearly recognized from the relative positional relationship with the brake pedal 25, and the accelerator pedal 31 can be operated appropriately. Therefore, when starting, the brake pedal 25 and the accelerator pedal 3
1 position is clearly identified and the brake pedal 25
It is possible to perform an appropriate depression operation on each pedal 25, 31 without operating the accelerator pedal 31 with the behavior of operating the accelerator pedal 31. Note that while driving, the shift lever 16 is in any position other than the P position.
Since the vehicle is in the R, D, 2, or 1 traveling position, the stopper piece 30 is maintained at the unlocked position U, and the operability of the accelerator pedal 31 is ensured. Furthermore, in the above embodiment, it is determined whether the vehicle is in the P position or not in the step, but if the vehicle starts from the N position, it can be determined whether the vehicle is in the P or N position as shown in parentheses. It is also mandatory to press the bookey pedal 25. Further, as the position detecting means, it is also possible to effectively utilize an inhibitor switch provided in the automatic transmission 10.

Effects of the invention As explained above, the present invention allows the accelerator pedal to be depressed only when the shift lever is shifted from the stop position to the drive position while the brake pedal is actually depressed. I made it so. Therefore, prior to starting the vehicle, it is mandatory to press the brake pedal, and by doing so, the position of the brake pedal is physically confirmed, and from this, the position of the accelerator pedal can be determined from the relative positional relationship with the brake pedal. It also recognizes the position of both pedals, making it possible to clearly identify the positions of both pedals. Moreover, since it only determines when the brake pedal is depressed and when the shift lever is shifted from the stop position to the drive position,
There is no need to use complicated discrimination control, and immediate practical use is possible.

[Brief explanation of the drawing]

Figure 1 is a conceptual diagram showing one embodiment of the present invention;
The figure is an enlarged view showing the speed change operation device of the same embodiment.
The figure is a flowchart showing the operation of the same embodiment.
The figure is a flowchart showing the operation of the conventional device. 10... Automatic transmission, 11... Speed change operation device,
16... Shift lever, 19... Position detection switch (position detection means), 21... Control circuit, 24... Brake switch, 25... Brake pedal, 26... Accelerator pedal lock device, 31... Accelerator pedal.

Claims (1)

[Scope of utility model registration request] The brake switch, which is closed when the brake pedal is depressed, and the shift lever provided on the automatic transmission operating device are unlocked by detecting that they are in the stop position and that they have been shifted to the driving position. a position detection means for outputting a signal; an accelerator pedal locking device that operates to a lock position that prevents the accelerator pedal from being depressed; and an unlock position that allows the accelerator pedal to be depressed; and an output from the position detection means that controls the closing of the brake switch. 1. An accelerator pedal control device for an automobile, comprising a control circuit that drives and controls the accelerator pedal locking device to an unlocked position based on both the unlock signal and the unlock signal.