电动汽车能量回馈制动仿真研究

摘要

Taking the electric vehicle designed by Sun Yat-sen University as the research object,the vehicle′s braking force is analyzed.On the premise of keeping the vehicle′s driving stability,with consideration of vehicle′s traction motor and battery pack,the maximum recycle of the braking energy is realized.A new braking model is promoted and integrated with the ADVISOR.The simulation shows that the vehicle′s regenerative braking efficiency is greatly improved by adopting the optimized regenerative braking strategy.%通过对制动过程中电动汽车的受力分析,在保证车辆驾驶安全性的基础上实现了回馈能量的最大化,分析了电动汽车电机及动力电池组对再生制动的影响系数。以中山大学研制的ECUV电动汽车为对象,在ADVISOR环境下重新对制动模块进行二次开发仿真结果表明,对比无能量回馈制动、ADVISOR回馈制动、优化的回馈能量制动3种不同控制策略下的制动回收能量,采用优化的回馈制动控制策略可更加有效的实现制动能量回馈,提高动力电池组使用效率,有效延长续驶里程。