The invention relates to the technical field of new energy automobile electronic circuits, in particular to a BMS awakening control circuit and a BMS wake-up control method. The circuit comprises a CC2 interface connected with a CC2 circuit in a charging gun during charging, and further comprises a pull-up current limiting circuit, a series resistance-capacitance circuit and a level conversion circuit; the pull-up current limiting circuit is connected with a power battery and the CC2 interface and is used for carrying out pull-up current limiting processing when the charging gun is inserted; the series resistance-capacitance circuit is connected with the pull-up current-limiting circuit and the level conversion circuit and is used for adjusting the input voltage corresponding to the levelconversion circuit; and the level conversion circuit is connected with the series resistance-capacitance circuit, the power battery and a wake-up circuit pin, and is used for obtaining a wake-up signal or a cut-off signal based on the input voltage, sending the wake-up signal to the BMS controller through the wake-up circuit pin, and cutting off the connection between the BMS controller and the CC2 interface based on the cut-off signal. The circuit can perform single wake-up based on a wake-up signal, so that the BMS directly enters a dormant state after charging is completed.

    本发明涉及新能源汽车电子电路技术领域,尤其涉及一种BMS唤醒控制电路及BMS唤醒控制方法。该电路包括充电时与充电枪内的CC2电路相连的CC2接口,还包括上拉限流电路、串联阻容电路和电平转换电路;上拉限流电路,与动力电池和CC2接口相连,用于在充电枪插入时进行上拉限流处理;串联阻容电路,与上拉限流电路和电平转换电路相连,用于调整电平转换电路对应的输入电压;电平转换电路,与串联阻容电路、动力电池和唤醒电路引脚相连,用于基于输入电压获取唤醒信号或截止信号,将唤醒信号通过唤醒电路引脚发送给BMS控制器,并基于截止信号截断BMS控制器与CC2接口的连接。该电路可基于唤醒信号进行单次唤醒,使得BMS在充电完成后直接进入休眠状态。


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    Titel :

    BMS wake-up control circuit and BMS wake-up control method


    Weitere Titelangaben:

    BMS唤醒控制电路及BMS唤醒控制方法


    Beteiligte:
    LI BIN (Autor:in) / ZHU HUACHANG (Autor:in) / LAI JIJIAN (Autor:in) / CHEN ZHUO (Autor:in) / HAN LIXIA (Autor:in)

    Erscheinungsdatum :

    2021-02-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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