KR19980057765A - Parking brake system with auxiliary release switch - Google Patents

Abstract

The present invention relates to a parking brake system having an auxiliary release switch. In particular, the parking brake can be released by the operation of an auxiliary release switch installed outside the vehicle to open another car in a narrow parking lot. The present invention relates to a parking brake system having an auxiliary release switch that can solve a dispute caused by a vehicle damage and unnecessary parking.

The present invention provides a battery voltage applied to an input, an auxiliary release switch for releasing a parking brake, a timer for counting a set time, a vehicle speed sensor for detecting a driving speed of the vehicle, And an actuator for locking or unlocking the parking brake, and the parking brake actuator is set to the unlocked state by controlling the parking brake actuator in response to the operation of the auxiliary release switch when a certain voltage or more is applied from the battery. And a control means for controlling the parking brake when a predetermined time elapses or exceeds a set speed.

Description

Parking brake system with auxiliary release switch

The present invention relates to a parking brake system having an auxiliary release switch. In particular, the parking brake can be released by the operation of an auxiliary release switch installed outside the vehicle to open another car in a narrow parking lot. The present invention relates to a parking brake system having a switch having an auxiliary release switch that can solve a dispute caused by a vehicle damage and unnecessary parking.

In general, the basic circuit of a vehicle brake consists of a brake pedal, booster, master cylinder, brake pipe, wheel cylinder and wheel brake.

Also, wheel brakes of passenger cars generally use disc brakes for the front axle and drum brakes or disc brakes for the rear axle. In contrast, most trucks use drum brakes on all wheels.

In the above structure, the hydraulic brake is transmitted to the brake oil in the master cylinder via the piston of the master cylinder as the brake pedal is pressed, and the pressure of the brake oil is passed through each brake pipe according to Pascal's principle. Is delivered to the piston. The pressure of the piston is then converted into a compressive force acting on the brake pads and braking is achieved by the brake pads pressing the disks tightly.

On the other hand, the parking brake serves to keep the parking or stopped state or to prevent the vehicle parked or stopped on the hill by itself, and serves as an auxiliary brake even when the main brake cannot function properly.

Such parking brakes include a center brake type for braking the brake drum provided on the propulsion shaft and a rear wheel brake type for braking the rear wheels.

The center brake parking brake is generally used in trucks or buses and is installed at the rear of the transmission, and the rear brake parking brake is widely used in passenger cars.

In addition, in the latter type parking brake device, the parking cable is operated in accordance with the operation of lifting the parking lever upward while pressing the lock release button at the tip end of the parking lever to spread the brake shoes of the drum brake installed on the rear wheel to the left and right of the drum ( Alternatively, in the case of a disc brake, braking is performed by bringing the brake pad into close contact with the disc).

In general, when a driver has a parking brake as described above to prevent a vehicle from moving in a parked state as in a sloping road, a driver may park in an unavoidable way in order to obstruct another car's course recently. Can be.

In this case, the driver may leave his or her contact number, but this is one of his or her home or work phone numbers. Therefore, if the driver of a vehicle that has to start urgently tries to release the parking brake of the vehicle blocking the course or shouts loudly in the neighborhood to get in touch with the driver, the driver must remove the vehicle while the space between the next cars is not available. Often it comes into contact with or damage the vehicle.

The present invention has been made in view of the problems of the prior art, the object of which is to release the parking brake by the operation of the auxiliary release switch installed on the outside of the vehicle can open the path of other cars in the narrow parking lot to other vehicles It is to provide a parking brake system having an auxiliary release switch that can solve the dispute caused by damage to the own vehicle and unnecessary parking.

1 is a schematic block diagram of a parking brake system with an auxiliary release switch in accordance with the present invention;

FIG. 2 is a control flowchart of the parking brake system having the auxiliary release switch shown in FIG.

Explanation of symbols for main parts of the drawings

One ; Control unit 3; Auxiliary release switch

5; Timer 7; Vehicle speed sensor

9; Parking brake actuator 11; Parking brake

In order to achieve the above object, the present invention provides a battery voltage applied to the input, an auxiliary release switch for releasing the parking brake, a timer for counting a set time, and driving of the vehicle. Unlock the parking brake by controlling the vehicle brake sensor for detecting the speed, the actuator for locking or unlocking the parking brake, and the parking brake actuator in response to the operation of the auxiliary release switch when a certain voltage or more is applied from the battery. It provides a parking brake system having an auxiliary release switch, characterized in that it is set to the state and the unlocking state elapses a predetermined time or exceeds the set speed, the control means for controlling the parking brake.

As described above, in the present invention, the parking brake can be released even when the owner of the vehicle is absent by the operation of the auxiliary release switch installed outside the vehicle, thereby opening the course of another vehicle in a narrow parking lot. Disputes caused by damage to the vehicle and unnecessary parking expenses can be resolved and efforts to find a parking space can be reduced.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic block diagram of a parking brake system with an auxiliary release switch according to the present invention, and FIG. 2 is a control flowchart of the parking brake system with an auxiliary release switch shown in FIG.

First, referring to FIG. 1, the parking brake system of the present invention is provided with a battery voltage Vb at an input of the controller 1, and is provided outside the vehicle, and has an auxiliary release switch 3 for releasing the parking brake. A timer 5 for counting time and a vehicle speed sensor 7 for detecting the traveling speed of the vehicle are connected.

The system control unit 1 may be composed of a microprocessor (CPU) having a ROM in which a system control program is embedded and a RAM temporarily storing data under processing.

Also connected to the output of the control unit 1 is an actuator 9, for example a motor, for locking or unlocking the parking brake 11.

The operation of the system of the present invention configured as described above will be described in detail with reference to FIG.

First, in order to prevent discharge of the battery, it is determined whether the battery voltage Vb is equal to or greater than a constant voltage α (S1).

As a result of the determination, when the battery voltage Vb is equal to or greater than the constant voltage α, the controller 1 determines whether the auxiliary release switch 3 is set to the on state (S2).

At this time, if the switch 3 is off, the apparatus continues to wait. If the auxiliary release switch 3 is set to the on state, the parking brake release signal is output to the parking brake actuator 9 to release the parking brake 11 accordingly. The timer 5 is started at the same time as releasing to the locked state (S3).

After that, when the unlocking state of the parking brake 11 has passed the set time β or when the vehicle speed from the vehicle speed sensor 7 is larger than the set speed γ, the control unit 1 controls the actuator 9. The parking brake 11 is interrupted in a locked state by outputting an interruption signal at step S6.

As described above, in the present invention, the parking brake can be released even when the owner of the vehicle is absent by the operation of the auxiliary release switch installed outside the vehicle, thereby opening the course of another vehicle in a narrow parking lot. Disputes caused by damage to the vehicle and unnecessary parking expenses can be resolved, and as a result, efforts to find a parking space can be reduced.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

Claims (1)

Battery voltage applied to the input, the auxiliary release switch for releasing the parking brake, a timer for counting the set time, a vehicle speed sensor for detecting the driving speed of the vehicle, and the parking brake An actuator for locking or unlocking the controller, and the parking brake actuator is set to the unlocked state by controlling the parking brake actuator in response to the operation of the auxiliary release switch when a predetermined voltage or more is applied from the battery. A parking brake system having an auxiliary release switch, characterized in that the control means for regulating the parking brake when it passes or exceeds the set speed.