The invention provides a battery pack fault diagnosis method and system, a storage medium and computer equipment, and the method comprises the steps: remotely collecting the voltage data of a battery pack, building a voltage data matrix according to the voltage data of the battery pack, and obtaining a confidence voltage data matrix through combining with a confidence rule of Gaussian distribution; and establishing a binary fault diagnosis matrix according to the confidence voltage data matrix and a preset fault setting condition, and judging that the corresponding single battery has a fault when the fault proportion of each single battery in the reference time period is greater than a preset threshold according to a plurality of fault diagnosis matrixes. The battery pack fault diagnosis method can realize remote fault diagnosis of the battery pack, is good in real-time performance, can guide the maintenance opportunity of the battery pack in time, can improve the use reliability of the battery pack and the use reliability of a new energy automobile, does not depend on a professional detection mechanism, is high in fault diagnosis efficiency, is short in time consumption, and is suitable for popularization and application. The effective utilization rate of the new energy automobile can be improved, and convenience is provided for popularization of the new energy automobile.
本发明提供一种电池包故障诊断方法、系统、存储介质和计算机设备,其远程采集电池包电压数据,并根据电池包电压数据建立电压数据矩阵,以结合高斯分布的置信规则获得置信电压数据矩阵,并根据置信电压数据矩阵和预设的故障置位条件建立二值化的故障诊断矩阵,并根据多个故障诊断矩阵获得各电池单体在参考时间段内的故障比例大于预设阈值时,判断对应电池单体为故障。本发明的电池包故障诊断方法可实现电池包的远程故障诊断,实时性好,可及时指导电池包的维护时机,进而可提高电池包的使用可靠性,提高新能源汽车的使用可靠性,且对专业检测机构无依赖,故障诊断效率高,耗时短,可提高新能源汽车的有效使用率,为新能源汽车的推广提供便利。
Battery pack fault diagnosis method and system, storage medium and computer equipment
一种电池包故障诊断方法、系统、存储介质和计算机设备
2024-08-27
Patent
Electronic Resource
Chinese
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