The invention discloses a backup braking circuit applied to parking braking and a braking method of the backup braking circuit, and relates to the technical field of braking control, and the backup braking circuit comprises the steps that an IPB is used for supplying power to a parking motor of a whole vehicle in a normal state and feeding back a backup parking starting signal to a gear shifting domain control unit when the IPB reports that parking braking fails; after the gear shifting domain control unit receives the backup parking starting signal, power supply of a parking motor of the IPB is cut off through an H-bridge relay, and gear shifting domain control is switched to supply power to the parking motor; and the parking motor directly performs braking control on the left rear brake disc after being powered by the gear shifting domain control unit. According to the invention, the state information of the PB parking failure is obtained in time, so that the IPB switches the power supply of the parking motor to the power supply of the parking motor by the gear shifting domain control unit by switching the power supply of the parking motor, and the harm caused by the braking failure of the IPB is effectively avoided.

    本发明公开了一种应用于驻车制动的备份制动电路及其制动方法,涉及制动控制技术领域,包括:IPB在正常状态下用于为整车的驻车电机供电,并在IPB报障驻车制动失效时反馈备份驻车启动信号至换挡域控单元;换挡域控单元在接收到备份驻车启动信号后,通过H桥继电器断开IPB的驻车电机供电并切换至换挡域控为驻车电机供电;驻车电机在经由换挡域控单元供电后直接对左后刹车盘进行制动控制。本发明通过及时获取PB驻车失效的状态信息,从而通过对驻车电机供电的切换,由IPB进行驻车电机的供电切换至换挡域控单元对驻车电机的供电,有效避免了因IPB制动失效导致的危害发生。


    Access

    Download


    Export, share and cite



    Title :

    Backup braking circuit applied to parking braking and braking method thereof


    Additional title:

    一种应用于驻车制动的备份制动电路及其制动方法


    Contributors:
    QIAN GUOYAO (author) / HU WANXUN (author) / ZHOU GANG (author) / XIAO ZHIHE (author)

    Publication date :

    2024-09-27


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    Locomotive and backup braking control method and backup braking device thereof

    LI XINING / DENG LIPING / MAO JINHU et al. | European Patent Office | 2015

    Free access

    Braking device with active braking and parking braking functions

    XIA DANQING / PAN GUANGYIN / LI CHONG | European Patent Office | 2021

    Free access

    Braking system with selective braking backup system

    JOHNSON BRAD J / KORTE CHAD M / CROMBEZ DALE S | European Patent Office | 2019

    Free access

    BRAKING SYSTEM WITH SELECTIVE BRAKING BACKUP SYSTEM

    JOHNSON BRAD J / KORTE CHAD M / CROMBEZ DALE S | European Patent Office | 2015

    Free access

    Parking braking system, vehicle and parking braking control method

    LIU XINYU / LI LEI / LU XIANGYU | European Patent Office | 2024

    Free access