The invention discloses a vehicle-mounted lithium battery charging method and system. The method comprises the steps of obtaining the current maximum charging current of a vehicle-mounted lithium battery according to the current electric quantity and temperature of the vehicle-mounted lithium battery; obtaining the maximum allowable charging current of the vehicle-mounted lithium battery according to the comparison result of the current maximum charging current and the output current of the charger; and obtaining a target output current of the charger according to the voltage, the current and the maximum allowable charging current of the vehicle-mounted lithium battery, and controlling the charger to charge the vehicle-mounted lithium battery according to the target output current. According to parameter information such as voltage, temperature, current and electric quantity of the vehicle-mounted lithium battery, the charging current output by the charger to the vehicle-mounted lithium battery is controlled, and a current limiting-constant voltage-current limiting charging mode is realized.
本发明公开一种车载锂电池充电方法及系统,包括:根据车载锂电池的当前电量和温度得到车载锂电池的当前最大充电电流;根据当前最大充电电流和充电机输出电流的比较结果,得到车载锂电池的最大允许充电电流;根据车载锂电池的电压、电流和最大允许充电电流得到充电机的目标输出电流,并根据目标输出电流控制充电机向车载锂电池充电。通过车载锂电池的电压、温度、电流、电量等参数信息,控制充电机向车载锂电池输出的充电电流,实现限流‑恒压‑限流的充电方式。
Vehicle-mounted lithium battery charging method and system
一种车载锂电池充电方法及系统
17.09.2021
Patent
Elektronische Ressource
Chinesisch
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