前驱式纯电动汽车制动能量回收控制策略研究

Research on braking energy recovery control strategy of precursor pure electric vehicle

以提高某款前轮驱动纯电动汽车制动能量回收效率为目的。基于理想制动力分配曲线和ECE法规提出一种三输入单输出的制动能量回收模糊控制策略,分别利用CRUISE和Simulink搭建整车和控制策略模型进行联合仿真。仿真结果验证模型的准确性,NEDC循环工况下续驶里程贡献度达11.5%。保证制动安全性的前提下有效减缓电池能耗趋势,提高了整车的经济性。

To improve the braking energy recovery efficiency of a pure electric vehicle with front wheel drive.Based on ideal braking force distribution curve and ECE regulation,a three-input single-output braking energy recovery fuzzy control strategy is proposed.The vehicle and control strategy model are simulated by CRUISE and Simulink respectively.The simulation results verify the accuracy of the model.The contribution of driving mileage under NEDC cycle condition is 11.5%.On the premise of ensuring braking safety,the trend of battery energy consumption is effectively slowed down and the economy of the whole vehicle is improved.