The invention provides an automobile brake-by-wire system and a brake control method and device. The system specifically comprises a liquid storage pot, a main cylinder, a displacement sensor, a first normally-open isolating valve, a second normally-open isolating valve, a linear pressure increasing valve, an energy accumulator, a pressure generating device, a front main wheel cylinder, a rear main wheel cylinder and a linear pressure reducing valve; and connection is carried out according to a mode specified by the technical scheme. The energy accumulator can store energy for the pressure output by the pressure generating device, namely, certain high pressure is kept, and when the pressure generating device cannot output pressure due to faults or power failure, the energy accumulator can also output pressure to the main wheel cylinder within a short time, so that branch wheel cylinders connected with the main wheel cylinders can utilize the pressure to realize braking; and compared with the pressure generated by a main cylinder through the action of a driver, the system has the performance of high brake response speed, high brake stability and the like.

    本发明提供了一种汽车的线控制动系统及其制动控制方法和装置,该系统具体包括储液壶、主缸、位移传感器、第一常开隔离阀、第二常开隔离阀、线性增压阀、蓄能器、压力产生装置、前主轮缸、后主轮缸和线性减压阀,并按技术方案规定的方式连接。其中,该蓄能器能够对压力产生装置输出的压力进行蓄能,即保持一定的高压,当压力产生装置因故障或断电无法输出压力时,在较短时间内蓄能器还能够向主轮缸输出压力,使得与主轮缸相连的支轮缸能够利用该压力实现刹车,相较主缸利用驾驶员的动作产生的压力来说,其具备制动响应速度快,且制动平稳性能高等性能。


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    Title :

    Automobile brake-by-wire system and brake control method and device


    Additional title:

    一种汽车的线控制动系统及其制动控制方法和装置


    Contributors:
    YAO YUGANG (author) / CHEN HAILONG (author) / HE ZHONGCHANG (author) / LIU JING (author) / ZHANG NAN (author)

    Publication date :

    2021-05-11


    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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