The invention discloses a method and a device for checking vacuum leakage of a vehicle power assisting device. More specifically, a vacuum pressure sensor detects a vacuum degree in a vacuum system of a power assisting brake in real time, and randomly extracts a pressure change value in a certain time period (t) while detecting the vacuum degree. The pressure change value extracted in the certain period (t) is compared with a critical value (P1), operation is performed, and whether the vacuum of the vehicle power assisting device leaks or not can be determined on the basis of the obtained value.

    本发明揭示一种车辆助力装置的真空泄漏与否检查方法及检查装置,更具体地说,真空压力传感器实时检测助力制动器真空系统内部的真空度,所述真空压力传感器一面检测真空度一面任意提取一定时段(t)的压力变化值,针对一定时段(t)中提取的压力变化值与临界值(P1)进行比较运算并且能以得到的值为基础确认车辆助力装置的真空是否在泄漏。


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    Title :

    Method and device for checking vacuum leakage of vehicle power assisting device


    Additional title:

    车辆助力装置的真空泄漏与否检查方法及检查装置


    Contributors:

    Publication date :

    2021-04-16


    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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