JPH0516536U - Brake auxiliary equipment for automobiles - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an auxiliary device for a vehicle brake that can enhance the braking effect of a vehicle stopped on a sloped road such as an uphill road. [Structure] When the brake pedal 1 is depressed, the brake activation switch 2 is actuated to give an input signal to the controller 5. The controller 5 rotates the motor 6 to wind up the wire rope 8, and holds the brake pedal 1 in which one end of the wire rope is locked in a depressed state. The brake is released by a return switch that works in conjunction with the accelerator pedal 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle brake assist device.

[0002]

[Prior Art]

 In the case of a manual shift type vehicle, when the vehicle is stopped, the clutch must be disengaged or the shift lever must be switched to neutral. If you take your foot off the brake pedal in this state, the vehicle will move on the sloped road such as a slope because the wheels that are not driven will rotate, which is very dangerous. In addition, at the time of starting, it is necessary to put the shift lever in the low state with the clutch disengaged, then gradually return the clutch pedal, and at the same time depress the accelerator pedal while slowly contacting the clutch plate to smoothly transmit the drive. When starting on an uphill road, it is difficult to return the clutch pedal, depress the accelerator pedal, and return the parking brake.

That is, when starting uphill, the parking brake is used, and when the right foot is on the accelerator pedal and is away from the brake pedal, the vehicle is stopped by the action of the parking brake. The parking brake is manually released at a delicate timing when drive transmission is performed by operating the accelerator pedal and clutch pedal.However, if the release method is slow, it causes engine stall, and if it is too early, the wheels of the car are driven. There was a danger that the car would slip down because it would rotate down the slope without it. In the case of a large vehicle, a serious accident was directly linked to such a case.

On the other hand, an automatic transmission type vehicle does not have a clutch pedal, and if the shift lever is in the D (drive) state, depressing the brake pedal stops the vehicle, and when the vehicle starts, simply release the brake pedal and depress the accelerator pedal. Therefore, the above-mentioned operation error on the uphill road does not occur. However, in the case of this type of vehicle, the vehicle will move forward if the brake pedal is inadvertently released while the vehicle is temporarily stopped. Also, if you continue to step on the brake pedal, you will get tired, so when the vehicle is stopped for a long period of time, the shift lever tends to be in neutral, but in this case there was the same unexpected accident as described above.

[0005]

[Problems to be solved by the device]

 However, in the prior art, effective measures have not been taken against the above-mentioned problems, and accidents due to brake operation mistakes when the vehicle is stopped are increasing.

The present invention has been made based on such a background, and a brake of an automobile that can enhance the braking effect of a stopped automobile, particularly an automobile stopped on an inclined road such as an uphill road. The purpose is to provide an auxiliary device.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, a brake activation switch installed on the lower side of the brake pedal and driven by the brake pedal, and installed on the lower side of the accelerator pedal and driven by the accelerator pedal. A return switch that operates in response to the operation, a controller that is connected to the brake start switch and the return switch, a clutch attached to the rotating shaft, and a motor that is driven by a control signal from the controller, and one end that winds the clutch. A wire rope wound around a drum and the other end of which is fixed to the brake pedal, and a selection switch which is connected to the controller and selects a brake assist mode are characterized.

[0008]

[Action]

 When the brake assist mode is selected, when the brake pedal is depressed, the brake activation switch operates and gives an input signal to the controller. The controller sends a command to the motor when the start switch is activated, rotates the motor, winds the wire rope around the winding drum of the clutch provided coaxially with the motor, and pulls the brake pedal with the pulling force of the wire rope. Keep the pedal depressed. As a result, the state where the brake is applied continues even if you release your foot from the brake pedal. Also, when the vehicle starts, when the accelerator pedal is depressed, the traction force of the wire rope is released by the action of the return switch, the brake pedal returns to its original position, and the accelerator pedal is further depressed to move the vehicle forward.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual diagram of a brake assisting device according to an embodiment of the present invention, in which 1 is a brake pedal, 2 is a lower part of the brake pedal 1, and the brake is activated by being driven by the brake pedal 1. A switch 3 is an accelerator pedal, 4 is a return switch which is installed below the accelerator pedal 3, and is driven by the accelerator pedal 3 to operate. 5 is a timer, a solenoid valve, a regulating valve, or the like, or has the same function. It is a controller that is composed of an electric circuit having the following, is connected to the brake starting switch 2 and the return switch 4, and generates various control signals by these operations.

Further, 6 is a motor with a speed reduction mechanism, which is adapted to operate in response to a control signal from the controller 5. 7 is a clutch provided on the rotating shaft of the motor 6, 8 is a wire rope whose one end is wound around the winding drum of the clutch 7, and the other end is fixed to the brake pedal 1, 9 is connected to the controller 5, and the brake according to the present invention It is a selection switch for selecting the auxiliary mode, and the driver can select whether or not to use the brake auxiliary mode by using the selection switch 9. That is, the brake assist mode is selected in the on position and the normal vehicle driving mode is selected in the off position. The selection switch 9 can be installed on the rear side of the steering wheel or at any place convenient for operation.

The controller 5 controls the time during which the motor 6 pulls the wire rope 8, and also controls the closing of the clutch 7 and the magnitude of the suction force. Reference numeral 10 is an instruction lamp for displaying whether or not the brake assist mode is selected.

FIG. 2 is a configuration diagram showing a connected state of each part of the brake assist device according to the present invention. In addition, some enlarged views are also shown. Reference numeral 11 is an adjusting nut arranged on the instrument panel, and 12 is a wire rope whose both ends are fixed to the adjusting nut 11 and the brake starting switch 2. By adjusting the adjusting nut 11, the brake nut is braked through the wire rope 12. The traction switch 2 is adjusted according to the driver. As a result, the driver can always obtain the stepping stroke of the brake pedal 1 that suits him / herself regardless of the difference in posture and seat position.

Next, the operation of the brake assist device of this embodiment will be described. When the driver feels tired or the vehicle is frequently stopped during driving, it is preferable to switch the selection switch 9 to the ON position to select this brake assist mode. In this mode, when the brake pedal 1 is fully depressed when the vehicle is stopped, the brake activation switch 2 is actuated, the motor 5 is momentarily rotated by the controller 5, and this rotation also causes the winding drum on the clutch 7 to rotate. Is rotated. Therefore, the wire rope 8 whose one end is locked to the winding drum pulls the brake pedal 1 so as to hold the brake pedal 1 at the depressed position. As a result, even if the driver releases his / her foot from the brake pedal 1, the braking state in which the brake pedal 1 is depressed is maintained.

When the vehicle is started again from this state, the accelerator pedal 3 is stepped on to activate the return switch 4, the motor 6 is driven by a command from the controller 5, the clutch 7 is released, and the wire rope 8 is moved. Release the traction force and return the brake pedal 1 to its original position. In this case, the driver continuously depresses the accelerator pedal 3 to move the vehicle forward.

In addition, by adopting a brake restraint control system using a magnetic clutch, it operates quickly during sudden braking, and when the driver releases his or her foot, the magnet clutch automatically reduces the braking force to about 70%. You can go back and slow down the car. If you need to stop the car immediately, just press the brake pedal 1 further, and if you want to move forward immediately, switch the accelerator pedal 3 and the car will continue to move forward. Is achieved.

FIG. 3 is a block diagram of a brake assisting device according to another embodiment. In this embodiment, a T-shaped joint 16 is connected between the hydraulic pump 14 and the oil distributor 15 of the brake oil pipe 13, The cylinder 17 is connected to the other connecting portion of the T-shaped joint 16. An output shaft 18 is attached to the output end of the cylinder 17, and a brake activation switch 2 is provided at the tip of the output shaft 18.

In such a configuration, when the driver depresses the brake pedal 1, the brake oil in the hydraulic pump 14 is connected via the brake oil pipe 13 to the oil distributor 15 and the brake system for the front and rear wheels. Flowing into the four oil branch pipes, some of the brake oil flows into the hydraulic cylinder 17 via the T-shaped joint 16 to push out the output shaft 18, and to activate the start switch 2 which is a brake start switch. .. After that, the operations of the motor 6, the clutch 7, the wire rope 8 and the brake pedal 1 are the same as described above. Further, the operation when the vehicle is started again is the same as that described above.

Each of the switches 2, 4 and 9 may be an electric switch or a fluid valve switch.

[0019]

[Effect of the device]

 As described above, according to the present invention, when the brake pedal is depressed, the brake depression state is maintained by the action of the brake activation switch, the controller, the motor, the clutch, and the wire rope, and when the accelerator pedal is depressed, the brake pedal is restored. By adopting the brake assistance to release the brake by operating the switch, it is possible to prevent an unexpected accident caused by a brake operation error when the vehicle is stopped on a sloping road, especially an uphill road, and then restart the vehicle. Can also be done smoothly.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a brake assist device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a connected state of each part of the brake assisting device according to the embodiment of the present invention.

FIG. 3 is a configuration diagram of a main part of a brake assist device according to another embodiment of the present invention.

[Explanation of symbols]

 1 Brake pedal 2 Brake start switch 3 Accelerator pedal 4 Return switch 5 Controller 6 Motor 7 Clutch 8 Wire rope 9 Selection switch 10 Indicator lamp

Claims (3)

[Scope of utility model registration request] 1. A brake activation switch installed below the brake pedal and driven by the brake pedal to operate, and a return switch installed below the accelerator pedal and operated by being driven by the accelerator pedal, A controller connected to the brake activation switch and the return switch, a clutch attached to a rotating shaft, a motor driven by a control signal from the controller, and one end wound around a winding drum of the clutch,
A wire rope having the other end fixed to the brake pedal,
A brake assist device for an automobile, comprising: a selection switch connected to the controller and selecting a brake assist mode. 2. A brake for an automobile according to claim 1, wherein an indicator lamp connected to the selection switch is provided, and it is possible to determine whether or not the brake assist mode is selected by the indicator lamp. Auxiliary device. 3. The brake assist device for an automobile according to claim 1, further comprising adjusting means for adjusting a distance between the brake activation switch and the brake pedal.