METHOD FOR MANAGING VEHICLE-MOUNTED POWER BATTERY BASED ON STOCHASTIC THEORY

Abstract: the present invention discloses a method for managing vehicle-mounted power battery based on stochastic theory, comprising: current source applies current excitation signal to power battery mounted on vehicle by control of bms, and obtaining voltage measurement signal of the power battery; reconstructing voltage response signal that can effectively restore true voltage of the power battery by processing input and output signals of power battery; obtaining battery model parameters based on reconstructed voltage response signal and current excitation signal; estimating physical parameter values of internal state of power battery based on extended kalman filter, unscented kalman filter and like; charging the power battery timely, checking and maintaining the power battery, or replacing the power battery by comparing estimated physical parameter values of internal states with corresponding threshold values.

Inventor(s): Chenghui ZHANG, Fazheng WEN, Bin DUAN, Rui ZHU, Junming ZHANG

CPC Classification: G01R31/367 (Software therefor, e.g. for battery testing using modelling or look-up tables)

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