The fault diagnosis method provided by the embodiment of the invention comprises the following steps: acquiring the rotating speed of a generator and the rotating speed of an engine; whether the difference value between the rotating speed of the generator and the rotating speed of the engine is larger than a rotating speed threshold value or not and whether the single duration time larger than the rotating speed threshold value exceeds a time threshold value or not is judged; according to the judgment result, whether the generator has a resolver fault or not is determined based on the resolver parameters; through the method, the fault reason of inconsistent rotating speed of the generator and the motor can be diagnosed, and the safe and reliable operation of the vehicle is effectively ensured.

    本申请实施例提供的故障诊断方法,包括:获取发电机的转速和发动机的转速;判断是否发电机的转速和发动机的转速的差值大于转速阈值且所述大于转速阈值的单次持续时间是否超过时间阈值;根据判断结果,基于旋变的参数来确定发电机是否存在旋变故障;通过该方法可以诊断出发电机和电动机转速不一致的故障原因,有效保证了车辆的安全和可靠运行。


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    Title :

    Fault diagnosis method and device, vehicle and medium


    Additional title:

    一种故障诊断方法、装置、车辆和介质


    Contributors:
    WEI SHUANG (author) / YAN YANG (author) / ZHANG SONG (author) / ZHANG HONGXIA (author)

    Publication date :

    2022-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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