The invention provides a charging and discharging control system of a low-voltage lithium battery. The system comprises a detection circuit used for detecting the battery temperature, the battery voltage and the battery current of the low-voltage lithium battery; the switching circuit is used for connecting the low-voltage lithium battery with a high-voltage battery at the vehicle end through a high-low voltage converter; the low-voltage lithium battery is in power supply connection with the main controller, the wake-up controller, the load controller, the high-low voltage converter and the load; the high-voltage battery is in power supply connection with the main controller, the wake-up controller, the load controller and the load through the high-low voltage converter. The main controller is used for judging whether the low-voltage lithium battery is in an abnormal state or not according to the detected battery temperature, battery voltage and battery current in the running process of the vehicle; furthermore, the switching circuit is controlled according to whether the abnormal state occurs or not and the type of the abnormal state so as to control charging and/or discharging of the low-voltage lithium battery. According to the method, the accuracy and safety of charge and discharge control of the low-voltage lithium battery are improved.

    本申请提供一种低压锂电池的充放电控制系统。该系统包括:检测电路,用于检测低压锂电池的电池温度、电池电压以及电池电流;开关电路,用于通过高低压转换器连接低压锂电池与车辆端的高压电池;并使低压锂电池与主控制器、唤醒控制器、负载控制器、高低压转换器和负载供电连接;高压电池分别通过高低压转换器与主控制器、唤醒控制器、负载控制器和负载供电连接;主控制器,用于在车辆行驶过程中,根据检测到的电池温度、电池电压以及电池电流判断低压锂电池是否出现异常状态;进一步根据异常状态是否出现以及异常状态的种类控制开关电路,以控制低压锂电池的充电和/或放电。本申请的方法,提高了低压锂电池的充放电控制的准确性以及安全性。


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    Titel :

    Charging and discharging control system of low-voltage lithium battery


    Weitere Titelangaben:

    低压锂电池的充放电控制系统


    Beteiligte:
    ZHANG XIAOMING (Autor:in) / LI MINGWEI (Autor:in)

    Erscheinungsdatum :

    2023-11-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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