Research on Energy Management Strategy for Electric Vehicles Based on Flywheel Energy Storage

With the development of electric vehicles, their economy has become one of the research hotspots. A braking energy recovery system for electric vehicles based on flywheel energy storage was designed, and a vehicle economy model for flywheel energy storage was established on the Cruise platform. A control strategy for the flywheel braking recovery system was designed and verified through simulation. The results indicate that, in addition, compared to energy storage systems without the flywheel, the integration of flywheel energy storage control strategies helps to reduce power battery consumption by 0.64%. In addition, the use of flywheel energy storage strategy can recover 2704.62 kJ of energy, which contributes to a 15.43% increase in driving range within the discharge depth range of 70% to 50%, significantly improving the overall driving range of the vehicle.