The invention relates to a battery temperature prediction method and device, a vehicle and a storage medium, and relates to the technical field of power batteries, and the method comprises the steps: obtaining a vehicle working condition at a current moment, determining a predicted current of a battery of the vehicle at at least one target moment after the current moment under the vehicle working condition, and for each target moment, determining the predicted current; and determining a predicted terminal voltage of the battery at the target moment according to the predicted current at the target moment, obtaining a heat exchange parameter of the battery, and determining a predicted temperature value of the battery at the target moment according to the predicted current at the target moment, the predicted terminal voltage at the target moment and the heat exchange parameter. The future predicted current of the battery is estimated by distinguishing the working condition scene of the vehicle, the accuracy of predicting the future current of the battery is improved, then the predicted temperature value of the target moment is predicted based on the predicted current of the target moment, and the accuracy of future temperature prediction is improved.
本公开涉及一种电池温度预测方法、装置、车辆和存储介质,涉及动力电池技术领域,方法包括:获取当前时刻的车辆工况,确定车辆工况下车辆的电池在当前时刻之后的至少一个目标时刻的预测电流,针对各个目标时刻,根据目标时刻的预测电流,确定电池在目标时刻的预测端电压,获取电池的热交换参数,根据目标时刻的预测电流、目标时刻的预测端电压和热交换参数,确定电池在目标时刻的预测温度值。通过区分车辆的工况场景预估电池未来的预测电流,提高了对电池未来电流预测的准确性,进而,基于目标时刻的预测电流,预测目标时刻的预测温度值,提高了未来温度预测的准确性。
Battery temperature prediction method and device, vehicle and storage medium
电池温度预测方法、装置、车辆和存储介质
2022-10-21
Patent
Electronic Resource
Chinese
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