The invention provides a boost charging system and a monitoring method for an electric vehicle, and the system comprises a boost charging circuit which is used for obtaining a first voltage between the output end of a boost negative electrode relay and the output end of a boost positive electrode relay, and a second voltage between the input end of the boost negative electrode relay and the input end of the boost positive electrode relay in real time, a third voltage is between the input end of the boost cathode relay and the output end of the boost anode relay, and a fourth voltage is between the output end of the boost cathode relay and the input end of the boost anode relay; and the motor controller compares the first voltage, the second voltage, the third voltage and the fourth voltage with a preset condition so as to diagnose the states of the boost anode relay and the boost cathode relay in a pre-charging stage, a charging stage and a charging completion stage of the battery pack. According to the boost charging system of the electric vehicle and the monitoring method provided by the invention, the state of the relay can be monitored in real time.

    本发明提供了一种电动汽车的升压充电系统及监测方法,包括:升压充电电路,用以实时获取升压负极继电器输出端与升压正极继电器输出端之间的第一电压,升压负极继电器输入端与升压正极继电器输入端之间的第二电压,升压负极继电器输入端与升压正极继电器输出端之间第三电压,升压负极继电器输出端与升压正极继电器输入端之间的第四电压;电机控制器通过将第一电压、第二电压、第三电压以及第四电压与预设条件进行比较,以在电池包的预充电阶段、充电阶段以及充电完成阶段对升压正极继电器与升压负极继电器的状态进行诊断。通过本发明提供的一种电动汽车的升压充电系统及监测方法,能够实时对继电器的状态进行监测。


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    Title :

    Boost charging system of electric automobile and monitoring method


    Additional title:

    一种电动汽车的升压充电系统及监测方法


    Contributors:
    XIE MENG (author) / LIU XUANJIANG (author) / LIN ZHIPENG (author) / XU LEI (author) / ZHOU HAICHENG (author) / WU WENJING (author)

    Publication date :

    2024-02-02


    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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