Research on Control Strategy of Flywheel Energy Storage Pure Electric Vehicle Braking Energy Recovery System

Although pure electric vehicles have prominent advantages in environmental protection and motor technology has become more and more perfect, the competitive disadvantage of pure electric vehicles still lies in their lack of endurance. For lack of pure electric vehicle battery life of this problem, this paper analyzes the basic theory of pure electric vehicle braking energy recovery, put forward a kind of pure electric vehicle braking energy recovery based on flywheel energy storage and optimize management strategy, further studied the braking energy recovery system under this policy, and established the simulation model, simulation software for pure electric vehicle model and the design of pure electric vehicle model under the three typical driving cycle simulation. The simulation results were analyzed. The analysis results show that under the condition of ensuring the safety and stability of the pure electric vehicle in the braking process, the energy consumption rate of the pure electric vehicle set up in this paper is reduced by 4.1 %, which improves the energy utilization rate of the vehicle, recovers more braking energy, and improves the endurance capacity of the pure electric vehicle to a greater extent.