The invention discloses a battery management system, a control method, a battery pack and electric driving equipment. The battery management system comprises a control branch, a switch module and a relay branch, wherein the control branch is used for controlling the switch module to be switched on and the relay branch to be switched off when it is detected that a first current value between the battery cell group and the battery pack is smaller than a preset current value, so that a current path between the battery cell group and the battery pack is switched on through the switch module; when it is detected that the first current value is larger than or equal to the preset current value, the relay branch is controlled to be switched on and the switch module is switched off, so that a current path between the battery cell group and the battery pack is switched on through the relay branch; and the control branch is also used for controlling the switch module to keep a conducting state by the driving circuit when the control circuit is in the dormant state. Thus, the over-current capability of the circuit can be improved, device damage caused by too high temperature rise when the current is too large is avoided, and the reliability of the circuit can be improved.

    本申请公开一种电池管理系统、控制方法、电池包及电驱动设备,电池管理系统包括控制支路、开关模组和继电器支路;其中:控制支路,用于在检测到电芯组与电池包之间的第一电流值小于预设电流值时,控制开关模组导通且继电器支路关断,使电芯组与电池包之间的电流通路通过开关模组导通;以及在检测到第一电流值大于或等于预设电流值时,控制继电器支路导通且开关模组关断,使电芯组与电池包之间的电流通路通过继电器支路导通;控制支路,还用于在控制电路处于休眠状态的情况下,由驱动电路控制开关模组保持导通状态。如此,不仅能够提升电路的过流能力,避免在过大电流时温升过高导致器件损坏,还能够提高电路的可靠性。


    Access

    Download


    Export, share and cite



    Title :

    Battery management system, control method, battery pack and electric driving equipment


    Additional title:

    电池管理系统、控制方法、电池包及电驱动设备


    Contributors:
    AI XIAOTING (author) / YE FUMING (author) / WANG XINGCHANG (author)

    Publication date :

    2024-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Battery management system, battery pack and electric equipment

    CHEN YONG / WEN SHIYONG | European Patent Office | 2024

    Free access

    Battery pack driving heating control method and device, battery pack and electric vehicle

    SHEN SHUAI / FENG LIYUAN / ZHANG QIANHUI et al. | European Patent Office | 2022

    Free access

    BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD

    HONG KYUNG-SIK / KIM HYEON-JIN / PARK GI-SU et al. | European Patent Office | 2025

    Free access