The redundant braking system comprises an EMB system and a braking system, the EMB system comprises an EMB control module, a wheel speed collecting processor, a pedal travel sensor and a plurality of braking actuators, and the EMB control module is electrically connected with the braking system, the pedal travel sensor, the wheel speed collecting processor and the braking actuators. The EMB control module can calculate the theoretical deceleration according to the corresponding relation between the brake master cylinder pressure and the deceleration and the acceleration relation corresponding to the engine output torque, calculate the slip rate of a plurality of wheels in the braking process according to signals detected by the wheel speed collecting processor and judge the braking state of the vehicle according to the pedal stroke. And when the difference value between the theoretical deceleration and the actual deceleration is larger than a first threshold value, the difference value between the wheel slip rates on different oil ways is larger than a second threshold value, and the pedal travel is larger than a third threshold value, the EMB control module controls the brake actuator to intervene in the brake system for braking. The problem that the vehicle is unstable when a braking system breaks down can be solved.

    一种冗余制动系统及冗余制动方法,包括EMB系统和制动系统,EMB系统包括EMB控制模块、轮速采集处理器、踏板行程传感器和多个制动执行器,EMB控制模块分别与制动系统、踏板行程传感器、轮速采集处理器、多个制动执行器电性连接,EMB控制模块可根据制动主缸压力与减速度的对应关系与发动机输出扭矩对应的加速度关系计算获得理论减速度、根据轮速采集处理器检测的信号计算制动过程中的多个车轮滑移率以及根据踏板行程判断车辆的制动状态,当理论减速度与实际减速度的差值大于第一阈值、不同油路上的车轮滑移率的差值大于第二阈值以及踏板行程大于第三阈值时,EMB控制模块控制制动执行器介入制动系统进行制动。其能解决车辆在制动系统故障时出现失稳的问题。


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    Title :

    Redundant braking system and redundant braking method


    Additional title:

    冗余制动系统及冗余制动方法


    Contributors:
    ZHU CHONG (author)

    Publication date :

    2023-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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