The invention provides a method for evaluating the state of charge of a battery of an electric vehicle. The method comprises the following steps: acquiring historical data in a normal charging process of the electric vehicle; based on the historical data, the normal charging process of the electric vehicle is divided into a constant-current charging stage and a constant-voltage charging stage, and the historical data is divided into constant-current charging historical data and constant-voltage charging historical data; establishing and training a first prediction model, and predicting the charge state of the electric vehicle battery in the constant-current charging stage based on the first prediction model; and establishing and training a second prediction model, and predicting the charge state of the electric vehicle battery in the constant-voltage charging stage based on the second prediction model.
本发明提供一种电动汽车电池荷电状态的评估方法,所述方法包括下列步骤:获取电动车正常充电过程中的历史数据;基于所述历史数据,将所述电动车正常充电过程划分为恒流充电阶段,以及恒压充电阶段,并将所述历史数据划分为恒流充电历史数据以及恒压充电历史数据;建立并训练第一预测模型,基于所述第一预测模型预测电动汽车电池在恒流充电阶段的荷电状态;建立并训练第二预测模型,基于所述第二预测模型预测电动汽车电池在恒压充电阶段的荷电状态。
Method for evaluating state of charge of battery of electric vehicle
一种电动汽车电池荷电状态的评估方法
2023-11-10
Patent
Electronic Resource
Chinese
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