Lithium battery temperature estimation method and system based on Bayesian neural network
A neural network and neural network model technology, applied in the field of battery thermal management, can solve the problems of uncertainty measurement, misleading decision makers, limited interpretability of results, etc., and achieve the effect of accurate internal temperature estimation
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[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment.
[0037] refer to figure 1 , the invention provides a kind of lithium battery temperature estimation method based on Bayesian neural network, and this method comprises the following steps:
[0038] S1. Offline collection of battery electrochemical impedance spectroscopy data and corresponding temperature labels;
[0039] S2. Process the electrochemical impedance spectrum data of the battery based on the ARD algorithm to obtain temperature-related features and temperature-related impedance frequency points;
[0040] S...
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