The invention discloses an active discharging circuit and method for an electric vehicle. The discharging circuit comprises an active discharging resistor, a switching tube, a bus capacitor, a logic management unit, a low-voltage control unit and a driving unit. The active discharge resistor and the switch tube are connected in series at two ends of the bus capacitor; one end of the logic management unit is connected with the switch tube after being connected in series with the driving unit, and the other end of the logic management unit is connected with the low-voltage control unit; and the driving unit is used for performing on-off control on the switching tube. The power supply network is independently designed on the high-voltage side, so that the high-voltage side discharge logic and the driving unit can reliably and continuously run after low-voltage power failure, and the high-voltage safety of the whole vehicle is guaranteed.

    本发明公开了一种电动车主动放电电路及方法,所述放电电路包括主动放电电阻、开关管、母线电容、逻辑管理单元、低压控制单元和驱动单元;所述主动放电电阻和所述开关管串联在母线电容的两端;所述逻辑管理单元一端和所述驱动单元串联后与所述开关管连接,所述逻辑管理单元另一端与所述低压控制单元连接;所述驱动单元用于对所述开关管进行开闭控制。通过在高压侧独立设计供电网络,实现在低压掉电后高压侧放电逻辑以及驱动单元都能够可靠持续运行,保障了整车高压安全。


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    Titel :

    Active discharging circuit and method for electric vehicle


    Weitere Titelangaben:

    一种电动车主动放电电路及方法


    Beteiligte:
    LIU LEI (Autor:in) / JIAO MINSHENG (Autor:in) / SONG TIANCAI (Autor:in) / XIAO YU (Autor:in)

    Erscheinungsdatum :

    2023-05-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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