The invention discloses a brake fluid leakage detection method, a vehicle controller and a vehicle and belongs to the technical field of vehicles, and the brake fluid leakage detection method comprises the steps that in the process that first actual pressure of a servo cylinder is increased to target pressure, when the first actual pressure reaches preset pressure, the first hydraulic volume of the servo cylinder is obtained, and a first moment is recorded; in the process that the second actual pressure of the servo cylinder is gradually reduced, when the second actual pressure falls back to the preset pressure, the second hydraulic volume of the servo cylinder is obtained, and a second moment is recorded; when the vehicle leaves a factory, the hysteresis liquid demand of the system is preset; the volume of the leaked brake fluid in the integrated brake control system can be calculated according to the first hydraulic volume, the second hydraulic volume and the system hysteresis fluid demand, then the time of the leaked brake fluid is calculated according to the first moment and the second moment, the first brake fluid leakage amount is further obtained, the brake fluid leakage amount can be accurately calculated, and the brake fluid leakage amount can be accurately calculated. And safe operation of a vehicle braking system is ensured.

    本发明公开了一种制动液泄漏检测方法、车辆控制器及车辆,属于车辆技术领域,其中制动液泄漏检测方法,在伺服缸的第一实际压力提升到目标压力的过程中,当第一实际压力达到预设压力时,获取伺服缸的第一液压容积,并记录第一时刻;在伺服缸的第二实际压力逐渐降低的过程中,当第二实际压力回落到预设压力时,获取伺服缸的第二液压容积,并记录第二时刻;在车辆出厂时预先设定系统滞回需液量;根据第一液压容积、第二液压容积、系统滞回需液量,可以计算出集成式制动控制系统中泄漏制动液的体积,然后再根据第一时刻和第二时刻计算出泄漏制动液的时间,进而获得第一制动液泄漏量,能够准确计算制动液泄漏量,确保车辆的制动系统安全运行。


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    Title :

    Brake fluid leakage detection method, vehicle controller and vehicle


    Additional title:

    制动液泄漏检测方法、车辆控制器及车辆


    Contributors:
    JIANG SHUAI (author) / SUI QINGHAI (author) / HAO ZHANWU (author) / LI JINLONG (author) / YU SHANYONG (author) / ZHAO HONGTIAN (author) / GENG KAIFENG (author) / NA JIANFEI (author)

    Publication date :

    2024-08-02


    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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