The invention provides a battery management self-awakening control circuit and a battery management self-awakening control method. The circuit comprises a current acquisition module, a current direction distinguishing module, a current awakening judgment module and a benchmark reference voltage module, the current acquisition module is used for acquiring charging and discharging current of the battery; the current direction distinguishing module is used for distinguishing the charging or discharging direction of the charging and discharging current of the battery; the current awakening judgment module is used for comparing the charging current or the discharging current of the battery subjected to direction distinguishing with a corresponding preset threshold value, and controlling the battery management system to awaken or sleep based on a corresponding comparison result; and the benchmark reference voltage module is used for providing reference voltage for the current wake-up judgment module to carry out current threshold comparison. According to the invention, whether the current battery supplies power to the load or whether the external power supply charges the battery can be clearly judged based on the accurately distinguished charging and discharging current and magnitude, so that automatic control of awakening and dormancy of the battery management system can be conveniently realized according to the judgment result.

    本发明提供一种电池管理自唤醒的控制电路及方法。该电路包括:电流采集模块、电流方向区分模块、电流唤醒判定模块和基准参考电压模块;电流采集模块用于采集电池的充放电电流;电流方向区分模块用于对电池的充放电电流进行充电或放电的方向区分;电流唤醒判定模块用于将方向区分后的电池的充电电流或放电电流与对应的预设阈值进行比较,并基于对应的比较结果控制电池管理系统唤醒或休眠;基准参考电压模块用于为所述电流唤醒判定模块进行电流阈值比较提供参考电压。本发明基于准确区分的充放电电流及大小能够明确判断出当前电池是否对负载供电或外部电源是否对电池进行充电,进而便于根据判断结果实现电池管理系统唤醒和休眠的自动控制。


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    Title :

    Battery management self-awakening control circuit and method


    Additional title:

    电池管理自唤醒的控制电路及方法


    Contributors:
    CHEN BODA (author) / FANG CHENFENG (author) / JI LEI (author) / LI LINMAO (author) / WANG YUANYUAN (author) / REN ZUFANG (author) / WANG DESHUN (author) / CHEN YUSHENG (author) / XIE MINGSHU (author) / MENG XIANGYIN (author)

    Publication date :

    2023-06-06


    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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