The invention discloses an automobile vacuum pump fault processing method. The method comprises the following steps: in a normal mode, a vehicle control unit controls a vacuum pump to start working after detecting that the pressure of a vacuum pipeline reaches a vacuum pump starting pressure K1, and controls the vacuum pump to stop working after the pressure of the vacuum pipeline reaches a closing pressure K2; and after the vacuum pump starts to work, if the working duration exceeds Ns, a vacuum pipeline pressure K3 still does not reach the preset stop working pressure K2 and the vacuum pumpdoes not stop working, a self-learning mode is started, and the current vacuum pipeline pressure K3 is adopted as the new stop working pressure. The situation that the vacuum pump cannot stop workingnormally is handled, the phenomenon that the pump is damaged possibly due to long-time work of the vacuum pump is avoided, and then the braking effect of the whole vehicle is guaranteed. Accidents areavoided, and the life and property safety of a driver is guaranteed.

    本发明揭示了一种汽车真空泵故障处理方法,正常模式下,整车控制器检测到真空管路压力达到真空泵开始压力K1后,控制真空泵开始工作,在真空管路压力达到关闭压力K2后,控制真空泵停止工作;当真空泵开始工作后,若工作持续时间超过Ns,真空管路压力K3仍未达到预定停止工作压力K2,真空泵未停止工作,则进入自学习模式,并采用当前真空管路压力K3作为新的停止工作压力。本发明对真空泵不能正常停止工作的情况做出处理,避免了真空泵长时间工作可能导致的泵损坏现象,进而保证了整车的制动效果。避免了事故发生,保证了驾驶员的生命财产安全。


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    Title :

    Automobile vacuum pump fault processing method and system


    Additional title:

    一种汽车真空泵故障处理方法及其系统


    Contributors:
    ZHANG KEJIAN (author) / LI TAO (author) / LIU ZHAOCAI (author)

    Publication date :

    2020-07-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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