The embodiment of the invention provides a power battery equalization charging method and device, a control device and a storage medium. The method comprises the steps of determining a first voltage difference value between a first battery cell and a second battery cell of a power battery, the first battery cell being the battery cell with the highest current voltage, and the second battery cell being the battery cell with the lowest current voltage; when the first voltage difference value is greater than a target voltage difference value, controlling the first battery cell to discharge; determining a second voltage difference value between the voltage of the first battery cell and a first target voltage; adjusting a charging current based on the second voltage difference value; and charging the power battery based on the adjusted charging current. By means of the method, it can be guaranteed that the first battery cell is not overcharged, the second battery cell continues to be charged, the first voltage difference value between the first battery cell and the second battery cell is reduced, and the service life of the power battery is prolonged.

    本申请实施例提供了一种动力电池均衡充电方法、装置、控制设备以及存储介质,所述方法包括:确定动力电池的第一电芯和第二电芯之间的第一电压差值,所述第一电芯为当前电压最高的电芯,所述第二电芯为当前电压最低的电芯;当所述第一电压差值大于目标电压差值时,控制所述第一电芯放电;确定所述第一电芯的电压与第一目标电压之间的第二电压差值;基于所述第二电压差值对充电电流进行调整;基于调整后的充电电流对所述动力电池进行充电。通过本申请提供的方法,可以保证第一电芯不过充,第二电芯继续充电,降低第一电芯和第二电芯之间的第一电压差值,提升动力电池的使用寿命。


    Access

    Download


    Export, share and cite



    Title :

    Power battery equalization charging method and device, control device and storage medium


    Additional title:

    动力电池均衡充电方法、装置、控制设备以及存储介质


    Contributors:
    SONG SHILIU (author) / LI FEI (author) / XIA DAXING (author) / XIA JI (author)

    Publication date :

    2020-06-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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





    Active equalization charging device and method of power battery

    WANG SHUANG / ZHANG YAO / ZHANG FAN et al. | European Patent Office | 2021

    Free access


    Battery equalization system control method and device and storage medium

    NIU GAOCHAN / LI LI / HUANG QIHUI et al. | European Patent Office | 2020

    Free access