The invention relates to the technical field of new energy vehicle batteries, aims to solve the problem of low evaluation precision of the battery capacity retention ratio in the prior art, and provides a vehicle battery capacity retention ratio evaluation method and device, equipment and a medium. The method comprises the steps that vehicle data are acquired, and the vehicle data comprise vehicle operation data and battery data; the battery data are preprocessed, preprocessed battery data are obtained, and the preprocessed battery data comprise multiple pieces of battery characteristic information; according to the preprocessed battery data, carrying out battery capacity attenuation correlation analysis to obtain battery capacity attenuation characteristic data; and obtaining a battery capacity retention rate evaluation result according to the battery capacity attenuation characteristic data, the vehicle data and a preset input model. According to the method, the battery capacity attenuation model is established for brand vehicle models, and the evaluation precision of the battery capacity retention ratio is improved.

    本发明涉及新能源车辆电池技术领域,用以解决现有技术中的电池容量保持率评价精度低的问题,提供了一种车辆电池容量保持率评估方法、装置、设备及介质。该方法包括:获取车辆数据,其中,车辆数据包括车辆运行数据和电池数据;对所述电池数据进行预处理,获取预处理电池数据,其中,所述预处理电池数据包括若干电池特征信息;根据所述预处理电池数据,进行电池容量衰减相关性分析获取电池容量衰减特征数据;根据所述电池容量衰减特征数据、所述车辆数据和预设输入模型,获取电池容量保持率评估结果。本发明为品牌车型建立电池容量衰减模型,提高了电池容量保持率的评估精度。


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    Title :

    Vehicle battery capacity retention rate evaluation method, device, equipment and medium


    Additional title:

    车辆电池容量保持率评估方法、装置、设备及介质


    Contributors:
    YU ZHONGHUA (author) / HUANG JIANPENG (author) / YU JIUWEN (author) / ZOU JIAWEI (author) / XIONG YINGENG (author) / DAI XIAOPENG (author)

    Publication date :

    2025-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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