The invention provides a power battery pack fault early warning method and system and a vehicle, and relates to the technical field of vehicles. The power battery pack fault early warning method comprises the following steps: acquiring real-time operation data of a battery pack, and inputting the real-time operation data into a preset prediction model to obtain a consistency degradation characteristic prediction quantity; and performing fault early warning according to the consistency degradation characteristic prediction quantity. According to the method, the real-time operation data of the battery pack are input into the preset prediction model, the consistency degradation characteristic prediction quantity can be obtained, and fault early warning is carried out through the consistency degradation characteristic prediction quantity, for example, the fault occurrence time with quantifiable confidence is given; namely, the future time health state of the battery pack can be predicted when the battery pack can still be used normally, and the future fault time can be predicted on the premise that the confidence coefficient is clear, so that effective guidance suggestions can be provided for maintenance planning.
本发明提供了一种动力电池组故障预警方法、系统及车辆,涉及车辆技术领域。本发明所述的动力电池组故障预警方法,包括:获取电池组的实时运行数据,将所述实时运行数据输入到预设的预测模型中,得到一致性退化特征预测量;根据所述一致性退化特征预测量进行故障预警。本发明将电池组的实时运行数据输入到预设的预测模型中,可以得到一致性退化特征预测量,通过一致性退化特征预测量进行故障预警,例如给出可量化置信度的故障将要发生时间,即在电池组仍可以正常使用时预测其未来时间健康状态,并能够在明确置信度的前提下预测未来故障的时间,从而能够对保养规划给出有效指导建议。
Power battery pack fault early warning method and system and vehicle
一种动力电池组故障预警方法、系统及车辆
2023-10-20
Patent
Electronic Resource
Chinese
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