Emergency braking device for vehicle line control breaking system

Abstract

The invention discloses an emergency braking device for a vehicle line control breaking system. The emergency braking device mainly comprises a backup control unit formed by a power supply end, a control end, a first connection end and a second connection end, a brake system control unit connected with the first connection end, a sensor unit connected to brake system control unit, a braking pedal,a brake lamp switch connected with the second connection end, a power supply connected with the power supply end, and a triode connected with the control end. An emitter of the triode is connected with a brake actuator; the power supply, the triode, and the brake actuator form an electric loop; and the triode enables the electric loop to be connected or disconnected according to a level state signal at the control end. Therefore, emergency braking can be performed according to actual conditions; and when the vehicle line control breaking system fails to work, the effective emergency braking function can be provided to reduce occurrence of accidents. The emergency braking device can be applied to the unmanned driving field.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to an emergency braking device for a vehicle-by-wire braking system. Background technique [0002] The brake-by-wire system includes two types, the electro-hydraulic brake system (EHB) and the electro-mechanical brake system (EMB), which are composed of a brake pedal module, an electronic control module, and a brake actuator. The unit recognizes the driver's braking intention according to the signal of the brake pedal position sensor and controls the action of the brake actuator to realize the control of the wheel braking force. The brake-by-wire system has the characteristics of no vacuum booster, compact structure, superior performance, and easy integrated control. It makes up for the shortcomings of the traditional brake system in structure and principle, and represents the development trend of automobile service brakes. [0003] Vehicle stability control technology and ...

AI Technical Summary

Problems solved by technology

[0003] Vehicle stability control technology and traditional passive safety technology have basically solved the safety problem of the vehicle itself, but traffic accidents still occur frequently, one reason is that the driver's operation is not timely, especially in emergency situations, the new driver reacts nervously , sluggishness, and the pedaling force of the legs cannot be applied to the maximum in time, which increases the braking force of the car, and even individual drivers step on the accelerator pedal by mistake due to factors such as tension, resulting in traffic accidents such as rear-end collisions, collisions, and other collisions. Second, because the brake-by-wire system cancels the direct connection between the brake pedal and the brake actuator, if the electronic control module, the brake pedal module, the brake actuator and the If any one of the connecting lines fails, or the vehicle power supply is cut off, the brake-by-wire system will have a dangerous situation of braking failure

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