The invention provides a high-voltage power distribution system and a control method thereof and a vehicle, the high-voltage power distribution system comprises a total negative switch piece and an active discharge bridge arm circuit, the total negative switch piece is connected between a negative electrode of a high-voltage battery and a load, and the active discharge bridge arm circuit comprises a discharge resistor and a discharge switch piece which are connected in series. The first end of the active discharge bridge arm circuit is connected with the battery end of the main negative switch piece, and the second end of the active discharge bridge arm circuit is connected with the load end of the main negative switch piece; the high-voltage power distribution system further comprises a control unit, and the control unit is used for controlling the discharge switch part to be closed when the main negative switch part is in an off state. And when the active discharge bridge arm circuit meets the discharge condition, the main negative switch piece is controlled to be closed. According to the high-voltage power distribution system, the control method and the vehicle, the battery end of the main negative switch piece is grounded through the active discharge bridge arm circuit, generation of electromagnetic interference can be reduced or even eliminated, so that reliability can be improved, and hardware cost is low.
本申请提供一种高压配电系统、控制方法和车辆,高压配电系统包括总负开关件和主动泄放桥臂电路,总负开关件连接于高压电池的负极和负载之间,主动泄放桥臂电路包括串联的泄放电阻和泄放开关件,主动泄放桥臂电路的第一端连接总负开关件的电池端,主动泄放桥臂电路的第二端连接总负开关件的负载端;高压配电系统还包括控制单元,控制单元用于在总负开关件处于断开状态时,控制泄放开关件闭合;并在主动泄放桥臂电路满足泄放条件时,控制总负开关件闭合。本申请的高压配电系统、控制方法和车辆在总负开关件的电池端通过主动泄放桥臂电路接地,能降低甚至消除电磁干扰的产生,从而可以提高可靠性、且硬件成本低。
High-voltage power distribution system, control method of high-voltage power distribution system and vehicle
一种高压配电系统、高压配电系统的控制方法和车辆
2021-11-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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