Research on Energy Management Strategy of Pure Electric Vehicle Based on Component Energy Consumption Analysis

Pure electric vehicles use batteries as power sources. Since the power lithium battery pack has limited power, the whole vehicle energy must be reasonably optimized and managed to improve the vehicle range. Based on the MATLAB/Simulink software platform, a vehicle model for energy management of multiple energy-consuming components is established, and a mathematical model that takes into account the main energy-consuming components such as the electric motor, the battery, the air conditioning system, the driver's model, the lighting system, and the electric vacuum pump and electric steering booster pump is established. The optimal decentralized coordinated control strategy based on energy feedback is designed and proposed for each system model of the pure electric vehicle, and the corresponding distributed optimal control strategies are designed for different modules in the model. Finally, the numerical simulation model is utilized to verify the feasibility of the control strategy, and the control strategy is partially verified by the experimental vehicle platform. The road condition of NEDC, is selected in which all the proposed control strategies significantly reduce the battery SOC consumption and improve the range compared with no energy control strategy.