Estimation and Management of Key State Parameters of Electric Vehicle Power Battery
By analyzing the relevant technologies of electric vehicle battery management system,a second-order equivalent circuit model is proposed,and the influence of balanced circuits is taken into account to establish a state of charge estimation algorithm rule based on Extended Kalman Filter(EKF).Experimental data is com-pared with real data to verify that the SOC algorithm of the model meets the design requirements,and improve-ment suggestions are proposed for the existing shortcomings of the design,and expectations are made for future development.
electric vehiclesbattery management systemestimation of battery state of charge(SOC)Kalman filtering method