The invention relates to a battery pack fault detection method and system and an electric vehicle. The battery pack fault detection method and system and the electric vehicle are simple in structure and ingenious in design, and the safety performance of a battery pack can be effectively improved. The state of the battery pack can be comprehensively known by monitoring the total voltage, the monomer voltage, the temperature and the current in real time; by screening out the battery cells with abnormal temperature, voltage or current and then diagnosing and analyzing whether the abnormal battery cells are subjected to micro short circuit, the abnormal battery cells can be quickly identified, unnecessary inspection on normal battery cells is reduced, and the detection efficiency is improved; battery faults can be comprehensively detected through a physical model, machine learning, time sequence analysis, ICA testing and EIS testing, and the accuracy and reliability of detection are further improved; according to the method, the safety and reliability of the battery pack are improved, the intelligent level of the battery management system is enhanced, and better use experience is provided for a user of the electric vehicle.
本发明涉及一种电池包故障检测方法、系统及电动车辆,该电池包故障检测方法、系统及电动车辆结构简单,设计巧妙,能够有效提高电池包的安全性能;通过实时监测总电压、单体电压、温度和电流,能够全面了解电池包的状态;通过筛选出温度或电压或电流异常的电芯,然后对异常电芯进行诊断分析其是否发生了微短路,能够能够迅速识别出异常电芯,减少了对正常电芯的不必要检查,提高了检测效率;通过物理模型、机器学习、时间序列分析、ICA测试和EIS测试可以对电池故障进行全面检测,进一步提高检测的准确性和可靠性;这种方法不仅提高了电池包的安全性和可靠性,还增强了电池管理系统的智能化水平,为电动车辆的用户提供了更好的使用体验。
Battery pack fault detection method and system and electric vehicle
一种电池包故障检测方法、系统及电动车辆
23.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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