The invention discloses a high-voltage interlocking detection circuit, a detection method and a vehicle. The high-voltage interlocking detection circuit comprises an amplifier, a first input end of which is grounded through a first conditioning resistor and a second input end of which is grounded through a capacitor; the interlocking circuit is connected with the output end and the second input end of the amplifier and used for detecting interlocking signals of all nodes in the vehicle, and when at least one node has an interlocking fault, a high-voltage interlocking detection signal output by the output end of the amplifier changes; one end of the second conditioning resistor is connected with the first input end and the other end is connected with the output end; one end of the third conditioning resistor is connected with the output end and the other end is grounded; and the main control chip is connected with the output end, and determines an interlocking fault and a node with the interlocking fault according to the change condition of the high-voltage interlocking detection signal. By adopting the method and the device, the fault node can be accurately and quickly positioned according to the detected frequency value, so that the troubleshooting efficiency is improved, and a reliable basis is provided for maintenance.

    本申请公开了一种高压互锁检测电路、检测方法及车辆。高压互锁检测电路,包括:放大器,第一输入端通过第一调理电阻接地,第二输入端通过电容接地;互锁电路,分别与放大器的输出端和第二输入端相连,用于检测车辆中各节点的互锁信号,并在至少一个节点出现互锁故障时,放大器的输出端输出的高压互锁检测信号发生变化;第二调理电阻的一端第一输入端相连且另一端输出端相连,第三调理电阻的一端与输出端相连且另一端接地;主控芯片与输出端相连,根据高压互锁检测信号的变化情况确定发生互锁故障以及出现互锁故障的节点。采用本申请,可以根据检测的频率值准确且快速地定位到故障节点,进而,提升了故障排查效率,为维修提供可靠的依据。


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    Titel :

    High-voltage interlocking detection circuit, detection method and vehicle


    Weitere Titelangaben:

    高压互锁检测电路、检测方法及车辆


    Beteiligte:
    YU HAO (Autor:in)

    Erscheinungsdatum :

    26.11.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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