The invention relates to a power battery voltage difference abnormity identification method and device, a server and a storage medium, and the method comprises the steps: obtaining the historical charging data of each charging of a vehicle within a preset duration; extracting data meeting a preset monomer voltage condition from the historical charging data, marking the data to obtain final label data, and screening single-frame data meeting a preset screening condition from the final label data; based on the single-frame data, sequentially calculating the single-body voltage difference of the voltage of each single-body battery in the power battery relative to a preset standard single body, obtaining the voltage difference change trend of each single-body battery, and when the voltage difference change trend reaches a preset abnormal condition, judging that the voltage difference of the power battery is abnormal. According to the embodiment of the invention, the monomer voltage difference between the charging voltage of each monomer battery of the power battery each time and the preset standard monomer can be calculated, the monomer voltage difference abnormity is identified based on the voltage difference change trend, the identification result is high in accuracy, and the abnormal monomer can be directly identified and positioned.

    本申请涉及一种动力电池压差异常的识别方法、装置、服务器及存储介质,其中,方法包括:获取车辆在预设时长内每次充电的历史充电数据;从历史充电数据中,提取满足预设单体电压条件的数据,并对数据进行打标,得到最终标签数据,并从最终标签数据中筛选满足预设筛选条件的单帧数据;基于单帧数据依次计算动力电池中每个单体电池的电压相对预设标准单体的单体压差,得到每个单体电池的压差变化趋势,并且在压差变化趋势达到预设异常条件时,判定动力电池压差异常。本申请实施例可以计算动力电池每个单体电池每次充电的电压与预设标准单体之间的单体压差,基于压差变化趋势,识别单体压差异常,识别结果准确度高,且可以直接识别并定位异常单体。


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    Title :

    Power battery voltage difference abnormity identification method and device, server and storage medium


    Additional title:

    动力电池压差异常的识别方法、装置、服务器及存储介质


    Contributors:
    SUN HAO (author) / LI DONGJIANG (author) / XU JIANBO (author) / JIANG ZHENWEN (author) / IBBINGER (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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