The invention relates to a multi-redundancy electronic hydraulic braking system and a control method, the system comprises a main braking system and a redundancy backup system, the main braking system comprises a first electronic control unit, a braking pedal, a double-cavity main cylinder, a reset spring, an oil storage pot, a ball screw mechanism, a redundancy motor, a power-assisted motor and a first electromagnetic valve; an oil storage pot is arranged on the upper side of the double-cavity main cylinder, a plurality of pistons are arranged in the double-cavity main cylinder and connected through reset springs, push rods are arranged on the two sides of the double-cavity main cylinder respectively, ball screw mechanisms are arranged on the push rods respectively, and the ball screw mechanisms are connected with the double-cavity main cylinder. A power-assisted motor and a redundant motor are arranged on the two sides of the ball screw mechanism respectively, and a displacement sensor is arranged on one side, connected with the brake pedal, of the ball screw. The multi-level redundancy requirement of the pilotless automobile for the braking system is met.

    本发明涉及一种多冗余电子液压制动系统及控制方法,其系统包括:主制动系统和冗余备份系统,主制动系统包括第一电子控制单元、制动踏板、双腔主缸、复位弹簧、储油壶、滚珠丝杠机构、冗余电机、助力电机和第一电磁阀,冗余备份系统包括第二电子控制单元和液压控制单元:双腔主缸上侧设置有储油壶,双腔主缸内设置有若干活塞,若干活塞之间通过复位弹簧连接,双腔主缸的两侧分别设置有推杆,推杆上分别设置有滚珠丝杠机构,滚珠丝杠机构两侧分别设置有助力电机和冗余电机,其中与制动踏板相连的滚珠丝杠一侧设置有位移传感器。本发明实现无人驾驶汽车对制动系统多层次冗余的需求。


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    Title :

    Multi-redundancy electronic hydraulic braking system and control method


    Additional title:

    一种多冗余电子液压制动系统及控制方法


    Contributors:
    HU JIE (author) / CHENG BINWEI (author) / ZHANG PEI (author) / YAN FUWU (author) / YOU ZHANPENG (author) / CAO ZE (author) / YANG JIAN (author)

    Publication date :

    2024-02-27


    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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