The invention provides a storage battery electricity shortage prevention control system, an electric vehicle and a storage battery electricity shortage prevention control method. The storage battery electricity shortage prevention control method control method comprises a power battery pack; a storage battery, wherein the battery is equipped with a low-voltage switch arranged in a line and used for connecting a low-voltage power utilization device a first voltage converter, wherein a first switch assembly is arranged in a line connected with the power battery pack and the first voltage converter; and a battery management device and a vehicle controller, wherein a second switch assembly is arranged in a circuit for connecting the battery management device with the vehicle controller. wherein the battery management device can control the on-off state of the first switch assembly according to the electric quantity state of the power battery pack and the voltage state of the storage battery so as to control the charging state of the storage battery. According to the technical scheme, the electric energy consumption of the whole vehicle controller and other low-voltage power utilization devices on the storage battery can be reduced in the shutdown state of the electric vehicle, and power is supplied to the storage battery with the electricity shortage phenomenon under the condition that the power battery is not damaged.

    本发明提供了一种蓄电池防亏电控制系统、电动车和蓄电池防亏电控制方法。其中,蓄电池防亏电控制系统包括:动力电池组;蓄电池,蓄电池用于连接低压用电装置的线路中设有低压开关;第一电压转换器,在所连接动力电池组与第一电压转换器的线路中设有第一开关组件;电池管理器和整车控制器,在连接电池管理器与整车控制器的线路中设有第二开关组件;其中,电池管理器能够根据动力电池组的电量状态和蓄电池的电压状态控制第一开关组件的通断状态,以控制蓄电池的充电状态。本发明的技术方案,能够在电动车停机状态下减少整车控制器以及其他低压用电装置对蓄电池的电能消耗,并在不损害动力电池的情况下,向出现亏电现象的蓄电池供电。


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    Title :

    Storage battery electricity shortage prevention control system, electric vehicle and storage battery electricity shortage prevention control method


    Additional title:

    蓄电池防亏电控制系统、电动车和蓄电池防亏电控制方法


    Contributors:
    HUANG ZHIYONG (author) / WU XUCHENG (author) / LIU YONGDONG (author)

    Publication date :

    2021-05-14


    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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