The invention relates to the technical field of vehicle high-voltage interlocking, and discloses a high-voltage interlocking fault detection method and device and a medium. The method comprises the following steps: acquiring a connection state of the high-voltage interlocking detection loop sent by the battery management unit, and acquiring a communication state and/or a high-voltage circuit parameter value of each high-voltage electric device; and when the connection state of the high-voltage interlocking detection loop is abnormal, whether the vehicle has a high-voltage interlocking fault or not is determined according to the communication state of each high-voltage electric device and/or the high-voltage circuit parameter value. According to the method and the device, whether the vehicle has the high-voltage interlocking fault or not can be further determined according to the communication state of each high-voltage electric device and/or the high-voltage circuit parameter value in the state that the high-voltage interlocking detection loop is abnormal, so that the accuracy of vehicle high-voltage interlocking detection is improved.

    本申请涉及车辆高压互锁技术领域,揭示了一种高压互锁故障检测方法、装置、介质。所述方法包括:获取所述电池管理单元发送的所述高压互锁检测回路的连接状态,并获取各个所述高压电器件的通信状态和/或高压电路参数值;在所述高压互锁检测回路的连接状态异常时,根据各个所述高压电器件的通信状态和/或所述高压电路参数值确定所述车辆是否发生高压互锁故障。本申请可以在高压互锁检测回路异常的状态下,通过各个所述高压电器件的通信状态和/或所述高压电路参数值进一步确定所述车辆是否发生高压互锁故障,提高对车辆高压互锁检测的准确性。


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    Title :

    High-voltage interlocking fault detection method and device, and medium


    Additional title:

    一种高压互锁故障检测方法、装置、介质


    Contributors:
    XIE YULU (author) / SI HUACHAO (author) / GUO YANGDONG (author) / ZHOU YUEQI (author) / XU YAWEN (author)

    Publication date :

    2024-07-05


    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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