Power battery health state and residual life prediction method based on big data
A technology for battery health status and power battery, which is applied in the field of power battery health status prediction and accurate estimation of battery vehicle health status. , the effect of accurate prediction
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[0048] In this embodiment, a method for predicting the health state of a power battery based on big data is to establish a battery health state evaluation model based on driving conditions-charging calculations by using the big data of electric vehicles running in real time, combined with machine learning algorithms, Accurately estimate and predict the SOH value of the battery, thereby solving the problem of difficult estimation and low accuracy of the battery SOH; at the same time, the relationship between the battery SOH and the equivalent cycle number is established by using the battery charge and discharge experiment, and indirectly estimated by the equivalent cycle number The battery SOH makes the prediction method not only practical, but also highly accurate, and intuitive; specifically, as figure 1 As shown, the method is carried out as follows:
[0049] Step 1: In this embodiment, the real-time operating data on the electric vehicle, the vehicle speed, accumulated mile...
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