Electro-mechanical Braking Method in Hybrid Electric Vehicles Based on Feedback Control Theory

In this paper,the hybrid electric vehicle braking process is researched,by using variables consists of HEV speed,motor speed,and state of charge established,functions of mechanical braking force,regenerative braking force and efficiency of energy recovery are constructed,and the control goal is to maximization the energy recovery efficiency.Under the feedback control strategy,with the constrain condition of braking strength and braking stability,combining experiments in ADVISOR,in different experiments of different working conditions,we can see that in UDDS Cycle,the regenerative braking efficiency is the best.What’s more,compared with strategies in ADVISOR,strategy proposed in this paper is obviously better.