The invention discloses a low-voltage intelligent anti-feed system for a pure electric vehicle, and the system comprises a voltage detection unit which is connected with a low-voltage storage battery of the pure electric vehicle and is used for cooperating with a micro-control unit MCU to collect the voltage of the low-voltage storage battery; the micro control unit MCU is connected with the vehicle control unit VCU and the voltage detection unit and used for detecting whether the vehicle control unit VCU sends a parking timing charging command or a low-electric-quantity automatic charging command or not and continuously sending an awakening command and a low-voltage charging request to the battery management system BMS when a preset condition is met; and the BMS is connected with the MCU and used for being awakened in real time when receiving the awakening instruction and starting and executing preset high-voltage power-on operation according to the low-voltage charging request. The electric quantity of the low-voltage storage battery in the pure electric vehicle can be scientifically managed, the problem that the electric quantity of the low-voltage storage battery is insufficient is effectively avoided, and the situation that the pure electric vehicle cannot be normally started is avoided.

    本发明公开了一种纯电动汽车用低压智能防馈电系统,包括:电压检测单元,与纯电动汽车的低压蓄电池相连接,用于配合微控制单元MCU采集低压蓄电池的电压;微控制单元MCU,与整车控制器VCU及电压检测单元相连接,用于检测整车控制器VCU是否发出停车定时充电命令或电量低自动充电命令,在满足预设条件时向电池管理系统BMS持续发出唤醒指令以及低压充电请求;电池管理系统BMS,与微控制单元MCU相连接,用于当收到唤醒指令时,实时被唤醒并根据低压充电请求,启动执行预设高压上电操作。本发明能够对纯电动汽车中低压蓄电池的电量进行科学管理,有效避免低压蓄电池出现电量不足的问题,避免纯电动汽车出现无法正常启动的情况。


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    Title :

    Low-voltage intelligent anti-feed system for pure electric vehicle


    Additional title:

    一种纯电动汽车用低压智能防馈电系统


    Contributors:
    ZHANG XING (author) / MENG QINGGUO (author) / WANG NING (author)

    Publication date :

    2023-06-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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