The invention discloses an LFP power battery fast charging current control method which is characterized by comprising the following steps: step 1, acquiring power battery charging parameters; step 2, detecting whether temperature jump occurs or not according to the temperature change of the power battery, and if the temperature jump occurs, executing step 3; 3, judging whether the temperature jump is high-temperature jump or low-temperature jump, if the temperature jump is low-temperature jump, executing the step 4, and otherwise, executing the step 5; 4, judging whether temperature hysteresis exists in the skipped temperature or not, and if the temperature hysteresis exists, executing the step 5; if the temperature hysteresis does not exist, cancelling the current low-temperature jump and executing the step 2; 5, the charging current skips in the same power battery SOC interval, when temperature interval skipping occurs, the charging current skips in the same SOC interval, and the problem that the current is adjusted by mistake when different temperature intervals change can be effectively avoided.

    本发明公开了一种LFP动力电池快充电流控制方法,其特征在于,包括以下步骤:步骤1、获取动力电池充电参数;步骤2、根据动力电池的温度的变化检测是否出现温度跳转,若出现温度跳转,则执行步骤3;步骤3、判断温度跳转是高温跳转还是低温跳转,若是低温跳转,则执行步骤4,否则执行步骤5;步骤4、判断跳转后的温度是否存在温度回滞,若存在温度回滞则执行步骤5;若不存在温度回滞,则取消当前低温跳转并执行步骤2;步骤5、充电电流在同动力电池SOC区间跳转,本申请在出现温度区间跳转时,充电电流安装同SOC区间进行跳转,可以有效的避免不同温度区间变化时导致的电流误调整的问题的发生。


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    Title :

    LFP power battery fast charging current control method and LFP power battery


    Additional title:

    一种LFP动力电池快充电流控制方法及LFP动力电池


    Contributors:
    XU QINJIAN (author) / LYU YONGLOU (author) / LUO ZHONGBAO (author)

    Publication date :

    2024-08-30


    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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