The invention discloses a hydraulic brake leakage detection method and device based on ESC, after a whole vehicle is powered on and/or stopped, brake pressure is applied to each brake loop of an ESC hydraulic regulator, the pressure is maintained for a period of time, and whether the brake loops leak or not is judged by detecting the pressure drop of each brake loop. One pressure limiting valve and two pressure increasing valves are arranged in each loop, are two-position two-way normally-open electromagnetic valves, and are closed after being electrified; and the suction valve and the two pressure reducing valves are two-position two-way normally-closed electromagnetic valves and are opened after being electrified. An automatic detection link is added before starting and after stopping, a mode of directly and automatically detecting pressure drop is adopted, the leakage condition can be objectively, directly and timely obtained, leakage existing in a pipeline is timely found, a driver is prompted to conduct repairing treatment through an instrument warning signal, and brake performance reduction or failure caused by brake fluid leakage in the driving process is prevented.

    本发明公开一种基于ESC的液压制动泄漏检测方法及装置,在整车上电和/或停车后,对ESC液压调节器的各个制动回路先施加制动压力,并保压一段时间,通过检测各个制动回路的压力降判断制动回路是否存在泄露。每个回路中有一个限压阀和两个增压阀,它们均为二位二通常开电磁阀,通电关闭;还有一个吸入阀和两个减压阀,它们均为二位二通常闭电磁阀,通电打开。本发明通过在起步前和停车后增加自动检测环节,采用直接自动检测压力降的方式,能客观、直接、及时获取泄漏情况,及时发现管路中存在的泄漏,并通过仪表警告信号提示驾驶员修复处理,防止行车过程中因制动液泄漏导致的制动性能下降或失效。


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    Titel :

    Hydraulic brake leakage detection method and device based on ESC


    Weitere Titelangaben:

    一种基于ESC的液压制动泄漏检测方法及装置


    Beteiligte:
    HUANG JIANGUO (Autor:in) / RUAN RENXIN (Autor:in) / XU WU (Autor:in) / XUE QIONG (Autor:in) / WU YANXIANG (Autor:in)

    Erscheinungsdatum :

    26.10.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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