JPH0582643U - Auxiliary braking system for vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a device that simplifies the driving operation of the driver when the vehicle is braking or starting. [Structure] Accelerator detection means 3 and clutch detection means 4
A detection unit 20 having a brake detection unit 7, a speed detection unit 5, and an engine speed detection unit 6, a clutch control unit 9 for automatically operating the clutch pedal 8, and a hydraulic pressure in the wheel cylinder 2. And a control unit 10 for inputting a signal from the detection unit 20 and outputting an instruction signal to the clutch control unit 9 and the solenoid valve 13.
The control unit 10 controls the clutch by operating the clutch control unit 9 based on the information from the detection unit 20 at the time of braking and starting of the vehicle to control the engine of the vehicle.
Auxiliary braking device for vehicles that prevents a stop. An operation switch for permitting operation of the vehicle auxiliary braking device may be provided,
An alarm means for issuing an alarm to the driver may be provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle brake control device, and more particularly to a device for assisting vehicle braking.

[0002]

[Prior Art]

 Conventionally, in a vehicle employing a manual transmission, the vehicle is braked and started with the operation of a clutch pedal by the driver.

Further, as in the hydraulic pressure holding device for an automobile brake disclosed in Japanese Utility Model Publication No. 60-3002, a mechanism for locking the depressed state of the clutch and a hydraulic pressure for holding the hydraulic pressure in the wheel cylinders. Some have a holding valve to hold the brake fluid pressure even when the clutch pedal is released when braking on an uphill road.

[0004]

[Problems to be solved by the device]

 In the vehicle employing the manual transmission, the engine may be stopped due to a malfunction of the clutch when the vehicle is braked or started.

In addition, in the vehicle brake fluid pressure retaining device described in the above-mentioned Japanese Utility Model Publication No. 60-3002, which reduces the operation of the driver when the vehicle starts moving, the lock is released when the clutch is depressed. , The clutch pedal is released from the locked state when the neutral pedal is turned off by either depressing the clutch pedal further or changing the speed. For this reason, the driver must operate the clutch when starting the vehicle.

The present invention has been made in view of the above matters, and an object of the present invention is to obtain a device that simplifies the driving operation of the driver during braking and starting of the vehicle.

[0007]

[Means for Solving the Problems]

 The present invention detects the operation state of the accelerator pedal 3 and the clutch pedal 8 in the vehicle braking device that controls the vehicle by the hydraulic pressure from the master cylinder 1 to the wheel cylinder 2, and detects the operation state of the accelerator pedal 3 and the clutch pedal 8. It has a clutch detecting means 4, a brake detecting means 7 for detecting the operation state of the brake pedal 15, a speed detecting means 5 for detecting the speed of the vehicle, and an engine speed detecting means 6 for detecting the engine speed. The detection unit 20, the clutch control means 9 for automatically operating the clutch pedal 8, the solenoid valve 13 for holding the hydraulic pressure in the wheel cylinder 2, the signal from the detection unit 20, and the clutch A control unit 9 and a control unit 10 for outputting an instruction signal to the solenoid valve 13 are provided, and the control unit 10 controls the vehicle during braking and when Sometimes, and with the controls the clutch by actuating the clutch control hand stage 9 on the basis of information from the detection section 20, vehicle auxiliary braking device the engine stop of the vehicle to prevent.

Further, an operation switch for selecting whether to operate or not the auxiliary braking device for a vehicle may be provided, and further comprises a speaker or a visual indicator for issuing an alarm to the driver when the vehicle has a bad start. Alarm means may be provided.

[0009]

[Action]

 At the time of braking or starting the vehicle, the control unit 10 inputs each signal from the accelerator detection unit 3, the clutch detection unit 4, the brake detection unit 7, the speed detection unit 5, and the engine speed detection unit 6 of the detection unit 20. When the possibility of engine stop is determined, the control unit 10 outputs an instruction signal to the clutch control unit 9 to activate the clutch control unit 9, and controls the clutch pedal 8 linked to the clutch control unit 9. Prevent engine stop.

Further, the control unit 10 controls the solenoid valve 13 interposed between the master cylinder 1 and the wheel cylinder 2 based on the information from the detection unit 20 to maintain the hydraulic pressure of the wheel cylinder 2. Cancel.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. The vehicle auxiliary braking device according to the present embodiment is a braking device that brakes a vehicle by supplying hydraulic pressure from the master cylinder 1 that interlocks with the brake pedal 15 to the wheel cylinders 2, and a detection unit 20 that detects the state of the vehicle. , A servo motor 9 which is a clutch control means interlocking with the clutch pedal 8, an electromagnetic valve 13 which holds the hydraulic pressure in the wheel cylinder 2, a control unit 10 which controls the servo motor 9 and the electromagnetic valve 13, An alarm means 11 for a transfer person and an operation switch 12 for permitting the operation of the system are provided.

The detection unit 20 includes an accelerator switch 3 for detecting the operation state of an accelerator pedal (not shown), a clutch switch 4 for detecting the operation state of the clutch pedal 8, and a brake for detecting the operation state of the brake pedal 15. It is composed of a switch 7, a speed sensor 5 for detecting the speed of the vehicle, and an engine speed sensor 6 for detecting the engine speed.

The accelerator switch 3, the clutch switch 4, and the brake switch 7 are turned on when the accelerator pedal, the clutch pedal 8, and the brake pedal 15 are respectively depressed by the driver, and the control unit 10 is activated. It is designed to output a signal.

The speed sensor 5 detects the amount of rotation of the wheel per unit time and converts it into speed. The engine speed sensor 6 detects the pulse time interval of the primary voltage pulse signal of the ignition coil and converts it into an engine speed.

The control unit 10 is composed of, for example, a microcomputer provided with a memory. The servo motor 9 is adapted to be interlocked with the clutch pedal 8 by a wire 14, and the servo motor 9 uses the hydraulic pressure controlled by a pilot valve as power to appropriately reciprocate the wire 14 according to an instruction from the control unit 10. And operate the clutch pedal 8.

The solenoid valve 13 is provided in a pipe line connecting the master cylinder 1 and the wheel cylinder 2, and the valve is appropriately opened and closed according to an instruction from the control unit 10 to maintain and release the hydraulic pressure in the wheel cylinder 2. To do.

The alarm means 11 is provided with an audio alarm device or an alarm device that is visually displayed together with an audio signal, and is an operation switch for issuing an alarm to the driver in response to a command from the control unit 10. Reference numeral 12 is adapted to output a signal to the control unit 10 when the switch is ON. By switching the switch ON and OFF, the operation of the vehicle auxiliary braking device of this embodiment can be permitted or stopped. It has become.

Next, a processing flow in the control unit 10 of this embodiment will be described. First, the processing flow when the vehicle is being braked will be described with reference to FIG. If the operation switch 12 is in the ON state (201, 202), it is confirmed whether or not the accelerator switch 3 is in the OFF state (203). If the accelerator switch 3 is in the OF F state, the state of the clutch switch 4 is judged. Yes (204). If the operation switch 12 is OFF in step 202 or the accelerator switch 3 is ON in step 203, the process returns to start 201. If the clutch switch 4 is in the OF state, it is determined whether the engine speed of the vehicle is less than a preset idle value (205). If the engine speed is less than the idle value, there is a possibility of engine stop. Therefore, the control unit 10 outputs an instruction signal to the servo motor 9 to operate the servo motor 9 to disengage the clutch (206). If the engine speed is equal to or higher than the idle value, the process returns to start 201.

Next, if the brake switch 7 is in the ON state (207), it is determined whether the vehicle speed is 0 km / h (208). If the clutch switch 4 is ON in step 204, the process directly proceeds to step 207. Then, if the vehicle is stopped, the solenoid valve 13 is operated to maintain the hydraulic pressure in the wheel cylinder 2 to maintain the stopped state of the vehicle (209, 210).

Secondly, a processing flow in the case of releasing the braking force at the time of starting the vehicle will be described with reference to FIG. If the accelerator switch 3 is ON while the vehicle is stopped (301, 302), it is determined whether the engine speed is equal to or higher than a preset threshold value (303). If the engine speed is equal to or higher than the threshold value, there is a possibility of engine stop. Therefore, the control unit 10 outputs a signal to the servo motor 9 to operate the servo motor 9 to put the clutch in a half-clutch state ( 304). Next, it is determined whether the engine speed is lower than the idle value (305), and if it is equal to or higher than the idle value, it is determined whether the vehicle starts to move or not by a signal from the speed sensor 5 (306).

When the accelerator switch 4 is OFF in step 302, when the engine speed is below the threshold value in step 303, and when the vehicle remains stopped in step 306, respectively, Return to start 301. If the engine speed is less than the idle value in step 305, the control unit 10 outputs an instruction signal to the servomotor 9 to put the clutch in the neutral state (309) and the alarm means 11 is turned on. It is activated to give an alarm to the driver (310), and the process returns to the start 301.

If the vehicle starts to move in step 306, the control unit 10 outputs a signal to the electromagnetic valve 13 to open the valve to release the hydraulic pressure holding state in the wheel cylinder 2 (307). Further, the control unit 10 outputs a signal to the servo motor 9 to gradually engage the clutch (308, 311).

As described above, in the present embodiment, the control unit 10 appropriately controls the servo motor 9 and the solenoid valve 13 based on the information input from the detection unit 20, so that the engine stop caused by the malfunction of the clutch can be prevented. There is no fear, and the hydraulic pressure state in the wheel cylinder is automatically controlled according to the state of the vehicle, so that the driving operation of the vehicle can be easily performed.

[0024]

[Effect of the device]

 INDUSTRIAL APPLICABILITY The present invention can provide an auxiliary braking device for a vehicle that simplifies the driving operation of the driver during braking and starting of the vehicle and can safely drive the vehicle.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an auxiliary braking device for a vehicle according to an embodiment of the present invention.

FIG. 2 is a diagram showing a processing flow during braking in the control unit of the embodiment.

FIG. 3 is a diagram showing a processing flow at the time of starting in the control unit of the embodiment.

[Explanation of symbols]

1 ... Master cylinder 2 ... Wheel cylinder 3 ... Accelerator detection means (accelerator sensor) 4 ... Clutch detection means (clutch switch) 5 ... Speed detection means (speed sensor) 6 ... Engine speed detection means (engine Rotation speed sensor) 7 ... Brake detection means (brake pedal switch) 8 ... Clutch pedal 9 ... Clutch control means (servo motor) 10 ... Control unit 11 ... Alarm means 12 ... Actuation switch 13 ... Solenoid valve 14-wire 15-brake pedal 20-detector

Claims (1)

[Scope of utility model registration request] 1. A braking device for a vehicle, wherein a vehicle is braked by hydraulic pressure from a master cylinder (1) to a wheel cylinder (2), an accelerator detection means (3) for detecting an operation state of an accelerator pedal, and a clutch pedal (3). 8) clutch detecting means (4) for detecting the operating state, brake detecting means (7) for detecting the operating state of the brake pedal (15), speed detecting means (5) for detecting the speed of the vehicle, and engine A detection unit (20) having an engine rotation speed detection means (6) for detecting the rotation speed of the vehicle, a clutch control means (9) for automatically operating the clutch pedal, and a hydraulic pressure in the wheel cylinder (2). The electromagnetic valve (13) to be held and the signal from the detection unit (20) are input, and an instruction signal is output to the clutch control means (9) and the electromagnetic valve (13). And a control unit (10) for operating the clutch by operating the clutch control means (9) based on information from the detection unit (20) when the vehicle is braking or starting. Is controlled to prevent an engine stop of the vehicle.