Research on Regenerative Braking Control Strategy and Simulink Simulation for 4WD Electric Vehicle

Abstract

With the reduction of energy and environmental degradation, pure electric vehicles are a breakthrough point to solve the global energy and environmental crisis. However, due to the current battery technology limitations, the mileage cannot meet the use requirements. Regenerative braking is based on the existing structure and components of the electric vehicle. The braking torque is generated simultaneously by controlling the motor to generate electricity, and the braking energy is recovered at the same time. The realization of regenerative braking can compensate for the shortage of continuously driving mileage of pure electric vehicles, and maximize the energy saving advantages and social benefits. The electro hydraulic braking system is the intermediate product of traditional brake system and brake by wire system, electro-hydraulic brake system of pure electric vehicle braking energy recovery can not only improve the effect of energy recovery based on, but also can realize the braking performance. Based on Simulink, a pure electric vehicle model of electro-hydraulic braking system is established. Based on this model, the regenerative braking control strategy of electro-hydraulic braking system of 4WD Electric vehicle is developed.