The invention relates to a vehicle high-voltage discharge control method and device and a vehicle. The method applied to the vehicle control unit comprises the steps that when a high-voltage system is powered off, a first instruction used for indicating to discharge the high-voltage system is sent to a direct current-direct current converter; and obtaining a first voltage of a high-voltage bus at the input end of the DC-DC converter, and sending out a first fault alarm when the first voltage is greater than or equal to a preset voltage threshold and the discharge duration is greater than a first preset duration threshold. Therefore, no matter normal power failure or abnormal power failure, high-voltage electric energy can be quickly discharged, the risk of high-voltage electric energy leakage is reduced, and the personal safety of a driver and passengers is improved. Besides, the first fault alarm is sent out, so that the user and the vehicle control unit can detect the fault reason and remove the fault in time, the vehicle safety is improved, the purpose of reminding the user to be away from the high-voltage part can be achieved, and the risk of high-voltage electric shock of the user caused by the fact that high-voltage electric energy is not discharged completely is reduced.

    本公开涉及一种车辆高压放电控制方法、装置及车辆。应用于整车控制器的方法包括:在高压系统断电时,向直流‑直流转换器发送用于指示对高压系统进行放电的第一指令;获取直流‑直流转换器输入端的高压母线的第一电压,并在第一电压大于或等于预设电压阈值、且放电时长大于第一预设时长阈值,则发出第一故障告警。这样,无论是正常断电,还是非正常断电,均可实现高压电能的快速泄放,降低高压电能泄漏的风险,提升驾乘人员的人身安全。另外,发出第一故障告警,便于用户和整车控制器及时检测故障原因并解除故障,提升车辆安全,并且还可以达到提醒用户远离高压部件的目的,从而降低因高压电能未泄放完成导致的用户高压触电的风险。


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    Titel :

    Vehicle high-voltage discharge control method and device and vehicle


    Weitere Titelangaben:

    车辆高压放电控制方法、装置及车辆


    Beteiligte:
    SHEN ZHIGANG (Autor:in) / YUE ZHIQIN (Autor:in) / LIU YANG (Autor:in) / WEI SHIXIONG (Autor:in) / YAN PEIZHENG (Autor:in) / TIAN YIGANG (Autor:in) / GAO ZELIN (Autor:in) / SHAN HONGYAN (Autor:in) / YU XIYANG (Autor:in)

    Erscheinungsdatum :

    2022-03-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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




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