JPH02127133A - Idling stopping device - Google Patents

Abstract

PURPOSE:To reduce fatigue of a driver by providing a control means for driving a first driving means in accordance with the accelerator pedal operating amount when an idling mode is set, determing a brake control pattern from a stroge means in accordance with the accelerator pedal operating amount and car speed immediately before the accelerator pedal is released to drive a second driving means. CONSTITUTION:When an idling mode setting switch 3 is turned on, a throttle valve driving means 12 is driven in accordance with the accelerator pedal operating amount, and when the accelerator pedal is released, a brake control pattern is determined from a brake control pattern storage means 202 in accordance with the accelerator pedal operating amount and car speed immediately before the releasing of the accelerator pedal, and a brake control driving means 13 is driven by a control unit 201. As a result, when the idling mode is set by a driver, the throttle valve driving means 12 controls the car speed in accordance with the accelerator pedal operation, and when the accelerator pedal is released, the brake control driving means 13 controls the brake to perform control and stopping.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a slow running stop device for automobiles and the like.

[Conventional technology]

Conventionally, when a road is congested, a driver alternately operates an accelerator pedal and a brake pedal to control the speed according to the movement of a vehicle in front, and repeats starting, slow driving, and stopping.

[Problem to be solved by the invention]

However, when driving at slow speeds such as during the above-mentioned traffic jams, the driver is forced to frequently operate the accelerator and brake.
As a result, during long traffic jams, drivers experience significant mental stress and
This caused physical fatigue and was a major factor in rear-end collisions.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a slow-speed traveling stop device that reduces driver fatigue during slow-speed traveling.

[Means to solve the problem]

a slow running mode setting means for setting a slow running mode;
An accelerator sensor that detects the amount of accelerator depression, a vehicle speed sensor that detects the traveling speed of the vehicle, a first drive means that drives the vehicle speed increase/decrease mechanism, a second drive means that performs brake control, and a vehicle speed sensor that detects the amount of accelerator depression. and a storage means that stores a brake control pattern according to the vehicle speed, and when the slow driving mode is set, the first drive means is driven according to the amount of accelerator depression, and when the accelerator is released, the previous accelerator is activated. The brake control device includes a control device that determines a brake control pattern from the storage device in accordance with the amount of depression and the vehicle speed, and drives the second drive device.

[For production]

In this invention, when the driver sets the slow driving mode, the first drive means controls the vehicle speed in response to the accelerator operation, and when the accelerator is released, the brake is controlled by the second drive means. Since braking and stopping are performed by the driver, there is no need for the driver to operate the brake pedal, which reduces driver fatigue when driving at slow speeds in traffic jams.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a configuration diagram showing one embodiment of the present invention. In the figure, 1 is an accelerator sensor that detects the amount of depression when the driver depresses the accelerator pedal, and a variable resistor type sensor is often used. A non-contact linear sensor is desirable; 2 is an accelerator switch that determines whether the accelerator pedal is pressed; 3 is a slow-speed driving mode setting switch used to manually set and release the slow-speed driving mode; an automatic reset type; It is. 4 is a notification display means for notifying and displaying the setting and release state of the slow speed driving mode to the driver; 5 is a select lever position sensor that switches the state of the automatic transmission 116; 7 is an engine rotation sensor that detects the rotation speed of the engine 8 , 9 is a vehicle speed sensor that detects the vehicle speed based on the rotational speed of the output shaft of the automatic transmission 6. The above-mentioned automatic transmission 816 here shows an automatic transmission having a fluid-coupled so-called torque converter, but it may also be of the type that connects and disconnects power and selects the gear position using a plate-shaped clutch as in the past. , it may be a combination of a continuously variable transmission and a clutch,
1G is a throttle opening sensor that detects the opening of the throttle valve 11, and the throttle valve 11 is moved by a throttle valve driving means 12. This throttle valve driving means 12
can use a motor with a reduction gear. Reference numeral 13 denotes a brake drive control means which can control the braking force by controlling the hydraulic pressure obtained by operating a hydraulic pump using the negative pressure of the engine or the rotational force of the engine. 2G is a combiator unit, and its control unit 201 includes signals from an accelerator sensor 11, an accelerator switch 2, a slow running mode setting switch 3, a select lever position sensor 5, an engine rotation sensor 7, a vehicle speed sensor 8, and a throttle opening sensor lO. is entered,
These signals and brake control pattern storage means 202,
Calculations are performed based on the information in the slow running mode release condition storage means 203 and signals are sent to the brake drive control means 13, the throttle valve drive means 12, and the notification display means 4.

Next, the operation of the above device will be explained. First, if it is not the slow running mode, in the normal driving mode, for example, basically, the motor of the throttle valve driving means 12 is driven so that the throttle valve 11 opens according to the amount of accelerator depression, and the intake air amount of the engine 8 is controlled. In addition, no drive signal is sent to the brake drive control means 13, and the brakes are applied by applying hydraulic pressure to the brake pedal in the same manner as in the past. When the vehicle enters a congested road and repeatedly starts and stops, and the driver turns on the slow-speed driving mode setting switch 3, the control section 201 of the computer unit 20 reads the information in the slow-speed driving mode cancellation condition storage means 203. Based on this, the vehicle speed sensor 8, accelerator sensor 11, engine rotation sensor 7, etc. are used to determine whether the vehicle speed is below a set value (usually about 20 km) or is not in a sudden acceleration state. Based on the information, the setting of the slow speed driving mode is permitted and a signal is sent to the notification display means 4 to notify the driver.

This is because if the driver accidentally enters slow driving mode when driving at high speeds such as when driving on a highway or when accelerating suddenly, the brakes will be applied as soon as the driver releases the accelerator pedal, which is dangerous. In addition, even in slow-speed driving mode, a predetermined program determines whether or not to cancel the slow-speed driving mode based on the above-mentioned slow-speed driving mode cancellation conditions. The determination is made, and if the cancellation conditions are met, a signal is sent to the notification display means 4 to notify the driver, and the control is returned to the slow running mode off state. At the time of cancellation, the output of the notification display means 4 is as follows: In order to prevent the driver from mistakenly thinking that the slow driving mode is continuing, it is recommended to use a buzzer, etc. in addition to the display.
When the wt speed driving mode is set, when the driver depresses the accelerator pedal, the accelerator sensor 1 detects the amount of depressing, and the control unit 201 moves forward using the select lever position sensor 5 according to a preprogrammed method. It is determined that it is in the drive position, and the brake drive control means 1
At the same time, a signal is sent to the throttle valve drive means 12 to release the brake, and a signal is sent to the throttle valve drive means 12 to release the brake.
is opened to increase the intake air amount of the engine 8, increasing its output, and controlling the vehicle speed to correspond to the amount of depression. Conversely, when the driver releases the accelerator, the accelerator switch 2 detects the accelerator-off state, and the control unit 201 similarly sends a signal to the throttle valve driving means 12 to operate the throttle valve 11 according to a pre-programmed method. At the same time as closing, a brake control pattern is calculated from the brake control pattern storage means 202 based on the information from the accelerator sensor 11, vehicle speed sensor 8, etc. just before that, and the vehicle speed sensor 8 detects the vehicle speed and brakes so that the brake control pattern is calculated. A signal is sent to the drive control means 13 to control the braking force, and when the vehicle is stopped, a predetermined braking force holding signal is sent to the brake drive control means 13.

Therefore, when the slow driving mode is set, the driver will be less likely to operate the brakes while driving in traffic jams, and will be able to drive by using only the accelerator, which will significantly reduce driver fatigue when driving in traffic jams. reduced. Note that the accelerator off state can be detected not only by the accelerator switch 2 but also by the signal of the accelerator sensor 1, but since the signal of the accelerator sensor 1 is normally an analog value, if output drift etc. are taken into account, this embodiment It is better to provide a separate accelerator switch 2 as shown in FIG.

FIG. 2 is a configuration diagram showing another embodiment of the present invention, and in the figure, 14 is a bypass valve driving means of a variable bypass valve 15 that bypasses the upstream and downstream of the throttle valve 11;
A drive signal is sent out by the control section 201 of the computer unit 20. If it is not the slow running mode, the throttle valve 1 is adjusted in accordance with the basic accelerator depression amount in the normal driving mode as in the embodiment shown in FIG.
When the motor of the throttle valve drive means 12 is driven so that the throttle valve drive means 12 opens, the vehicle speed is increased or decreased, and the vehicle enters the slow speed driving mode.
The control section 201 of the computer unit 20 sends a signal to the throttle valve driving means 12 to close the throttle valve 11, and at the same time sends a signal to the bypass valve driving means 14 to open the variable bypass valve 15 to control the intake air amount of the engine 8. After the throttle valve 11 is fully closed, the intake air amount of the engine 8 is changed by opening and closing only the variable bypass valve 15, and the vehicle speed is controlled to be in accordance with the amount of accelerator depression. With this configuration, the same effect can be expected since the vehicle speed can be controlled only by the accelerator, and the control resolution can be increased because the output of the engine 8 is controlled by the variable bypass valve 15 with a small fully open flow rate, and the output of the engine 8 can be adjusted in the event of a failure. There is also the advantage that a safe system can be constructed since there is no fear that the vehicle will run out of control due to excessive increase in size.

〔Effect of the invention〕

As explained above, according to the present invention, by setting the slow speed mode when driving at a slow speed such as during road congestion, it is possible to start, drive at a slow speed, and stop by simply operating the accelerator pedal. This reduces the mental and physical fatigue of the driver, prevents accidents such as rear-end collisions, and enables safe driving.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a slow running stop device according to one embodiment of the present invention, and FIG. 2 is a block diagram of a slow running stop device according to another embodiment. l... Accelerator sensor, 3... Slow running mode setting switch, 9... Vehicle speed sensor, 12... Throttle valve drive means, 13... Brake drive control means, 201
. . . Control unit, 202 . . . Brake control pattern storage means. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa Figure 1: Accelerator sensor

Claims (1)

[Claims] A slow running mode setting means for setting a slow running mode, an accelerator sensor for detecting the amount of accelerator depression, a vehicle speed sensor for detecting the running speed of the vehicle, and a first driving means for driving a vehicle speed increase/decrease mechanism; The second one performs brake control.
a storage means that stores in advance a brake control pattern according to the amount of accelerator depression and the vehicle speed; and when the slow running mode is set, the first drive means is driven according to the amount of accelerator depression; A slow running stop device characterized by comprising a control means for determining a brake control pattern from the storage means and driving the second drive means in accordance with the accelerator depression amount and vehicle speed immediately before the accelerator is released.