四轮独立驱动轮毂电机电动汽车再生制动研究

Study on Regenerative Braking for Four Wheel Independent Drive In-Wheel-Motor Electric Vehicle

针对四轮独立驱动轮毂电机电动汽车再生制动控制问题,提出了一种新的控制策略提高电动汽车制动能量回收率。在分析四轮独立驱动轮毂电机电动汽车再生制动控制原理基础上,通过合理分配汽车前后轴电机制动力和机械制动力,保证制动稳定性前提下,回收更多的制动能量。应用CarSim与Matlab/Simulink搭建整车仿真模型和编写再生制动控制策略,选取不同仿真工况对控制策略进行验证。结果表明:设计的控制策略通过有效地分配前后轴电机制动力与机械制动力,在不同工况下均能获得较高的再生制动能量回收率及整车有效能量回收率。

For the regenerative braking control of four wheel independent drive in-wheel-motor, it put forward a new control strategy to improve the braking energy recovery of electric vehicle. Based on the analysis of the regenerative braking control principle of the four independent wheel drive in-wheel-motor, to achieve more braking energy as far as possible in the case of the braking is stable, through distributing the braking farce of motor and mechanical braking farce rationally on the front axle and rear axle. Building the vehicle simulation model and writing regenerative braking control strategy program in CarSim and Matlab/Simulink. Make the test about the control strategy of the different operating mode. The results show that the control strategy can obtain higher regenerative braking energy recovery rate and vehicle effective energy recovery rate under different conditions by assigning the electric power＇s in front axle and rear axle and mechanical braking force effectively.