JPH04224446A - Brake device for vehicle - Google Patents

Abstract

PURPOSE:To relieve damage by issuing a collision signal when an automobile collides, and applying brakes automatically in conformity to this collision signal. CONSTITUTION:An actuate signal for an air bag system is input in an anti-lock controller 2 when a collision accident is generated of such a degree as actuating the air bag system. Thereby a wheel cylinder 4 is operated to stop the vehicle running, and thus a secondary collision is well prevented.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake system for a vehicle that outputs a collision signal when the vehicle collides, and automatically applies the brakes in response to the collision signal to alleviate damage.

0002

2. Description of the Related Art Air bag systems are being put into practical use as a means to minimize damage caused during automobile collisions.

[0003] In this airbag system, for example, the airbag is inflated by the impact force when a car collides, and the driver, passenger, etc. The idea is to reduce the force and reduce the risk of personal injury.

0004

[Problem to be Solved by the Invention] As described above, in the known airbag system, when a car collision occurs, the airbag system immediately inflates to reduce the impact force on the human body of the driver etc. However, although it depends on the cause and circumstances of the accident, in the event of a major collision in which the airbag system is activated and the airbag inflates, the driver will generally suffer the most damage. It has been thought that, for example, in the event of a collision on a highway, the brakes and steering operations become impossible due to the collision, leading to multiple collisions such as double collisions or more.

[0005]

[Means for Solving the Problems] The present invention has been made in view of the above, and when a collision occurs that causes the airbag system to operate, the airbag system operation signal is transmitted to the anti-lock brake. An object of the present invention is to provide a braking device for a vehicle that prevents a secondary collision by inputting information into a controller and operating a wheel cylinder to stop the vehicle from running.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below based on embodiments shown in the drawings.

Reference numeral 1 denotes an airbag controller in an airbag system, and this airbag controller 1
inputs an acceleration signal that occurs when a car crashes, and when this acceleration signal is input, a bag inflation signal for inflating an airbag (not shown) is output, and the airbag is inflated. At the same time as the bag inflation signal is output, a collision signal is output and the collision signal is input to the anti-lock brake controller 2. The anti-lock brake controller 2 to which this collision signal is input outputs an output signal to the actuator 3 for converting the electric signal into fluid pressure, and as a result, the wheel cylinder 4 operates and the driver depresses the brake pedal. At the very least, the brakes are applied, the vehicle speed is detected by the vehicle speed sensor 5, and the pressure supply to the wheel cylinders 4 is maintained until the vehicle comes to a complete stop.

As described above, in this embodiment, when an airbag (not shown) is inflated by an operation signal from the in-vehicle airbag controller 1 caused by the occurrence of a car collision, the signal causes the airbag to be inflated. At the same time as the expansion, the wheel cylinder 4 is automatically activated to apply the brakes on the vehicle and automatically stop the vehicle, which may cause the driver to lose consciousness or cause a serious accident in which the driver is unable to drive, for example in the event of a collision. Even if an accident occurs, the driving brake is automatically applied to the accident vehicle and the vehicle stops immediately after the accident, so serious accidents such as multiple rear-end collisions can be minimized.

[0009]

Effects of the Invention As described above, the present invention provides the wheel speed sensor 5
and a control circuit 2 which inputs the signal of the wheel speed sensor 5 and outputs a brake control signal for controlling the amount of wheel slip.
In a brake control device comprising an actuator 3 that generates a braking force based on the brake control signal, a vehicle collision detection circuit 1 is connected to the control circuit 2,
The control circuit 2 is a vehicle braking device that inputs a collision signal from the detection circuit 1 and outputs a maximum braking signal to the actuator 3. According to this, the collision detection circuit that occurs when an automobile collision occurs When the airbag is inflated by the operation signal from 1, the wheel cylinder 4 is automatically operated at the same time as the airbag is inflated by that signal, and the brakes are applied to the vehicle to automatically stop the vehicle. Even if the driver loses consciousness or is unable to drive due to an accident, the brakes will automatically be applied to the vehicle and the vehicle will stop immediately after the accident. Moreover, the effect of minimizing serious accidents such as multiple rear-end collisions can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a circuit explanatory diagram of a vehicle brake device according to the present invention.

[Explanation of symbols]

1...Airbag controller 2...Anti-lock brake controller 3...Actuator 4...Wheel cylinder 5...Wheel speed sensor

Claims (1)

[Claims] 1. A wheel speed sensor (5), a control circuit (2) that inputs the signal of the wheel speed sensor (5) and outputs a brake control signal for controlling the amount of slip of the wheels, and A brake control device comprising an actuator (3) that generates a braking force based on the brake,
A vehicle collision detection circuit (1) is connected to the control circuit (2), and the control circuit (2) inputs a collision signal from the detection circuit (1) to apply a maximum braking signal to the actuator (3). A vehicle brake control device characterized by outputting an output.