The invention discloses a battery health degree determination method and system, electronic equipment and a storage medium. The determination method comprises the following steps: acquiring residual electric quantity and charging voltage corresponding to a plurality of charging moments in a target charging process of a battery; respectively calculating the ratio of the increment of the residual electric quantity to the increment of the charging voltage corresponding to the adjacent charging moments; and determining the health degree of the battery according to the charging efficiency peak value, wherein the charging efficiency peak value is the maximum value in all the ratios, and the target charging process spans a charging efficiency peak in the complete charging process from power-off to full power. The method determines the health degree of the battery through the charging efficiency peak value of the battery, has higher accuracy and scientificity compared with only checking the maximum residual electric quantity value, is beneficial to unifying evaluation standards of users and sellers for the health degree of the battery, avoids disputes caused by the evaluation standards, and also improves the trust degree of the user on the new energy vehicle and the vehicle purchase desire.

    本发明公开了一种电池健康度的确定方法及系统、电子设备及存储介质;所述确定方法包括步骤:获取电池在目标充电过程中多个充电时刻对应的剩余电量以及充电电压;分别计算相邻充电时刻对应的剩余电量的增量与充电电压的增量之间的比值;根据充电效率峰值确定所述电池的健康度;其中,所述充电效率峰值为所有所述比值中的最大值;目标充电过程跨越了从没电到满电的完整充电过程中的充电效率峰值。本发明通过电池的充电效率峰值确定电池的健康度,相比于仅通过查看最大剩余电量值,具有更高的准确度和科学性,有利于统一用户和销售方对于电池健康度的评价标准,避免因此而导致的纠纷,同时也提升了用户对新能源车辆的信任度和购车欲望。


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    Title :

    Battery health degree determination method and system, electronic equipment and storage medium


    Additional title:

    电池健康度的确定方法及系统、电子设备及存储介质


    Contributors:
    LU DONGHENG (author) / YANG WEIJIA (author) / YANG ZHI (author) / JIN QI (author)

    Publication date :

    2021-12-21


    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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