基于EMB的纯电动汽车制动稳定性与制动能量回收多目标优化  

Multi-Objective Optimization of Braking Stability and Braking Energy Recovery for BEV Based on EMB

作　　者：彭伟[1] 李志华[1] 陈启鹏[1] Peng Wei;Li Zhihua;Chen Qipeng(Hangzhou Dianzi University,Hangzhou 310018)

机构地区：[1]杭州电子科技大学,杭州310018

出　　处：《汽车技术》2021年第11期35-41,共7页Automobile Technology

摘　　要：为了提高纯电动汽车的制动稳定性和再生制动能量回收率,提出一种不同制动强度下的最优制动力分配方法,以制动稳定性和制动能量回收效率为优化目标,以制动力分配系数、再生转矩、蓄电池/超级电容荷电状态的上、下限值为设计变量,在多个约束条件下运用粒子群优化算法求取Pareto最优解集,再通过ADVISOR软件对最优解集在不同工况下的制动情况进行仿真,结果表明,纯电动汽车的再生制动能量回收率明显提高,且稳定性也进一步增强。In order to improve the braking stability and regenerative braking energy recovery rate of Battery Electric Vehicle(BEV),this paper proposes an optimal braking force distribution method under different braking strength.With the braking stability and braking energy recovery efficiency as the optimization objectives,the braking force distribution coefficient,regenerative torque,and the upper and lower limits of battery/supercapacitor SOC as design variables,this method applies particle swarm optimization algorithm to solve Pareto optimal solution set under multiple constraints.The optimal solution set is simulated by advisor software under different conditions.The results show that the regenerative braking energy recovery rate of BEV is significantly improved,and the stability is further enhanced.

关 键 词：纯电动汽车 制动稳定性 制动能量回收 

分 类 号：U469.72[机械工程—车辆工程] U462.32[交通运输工程—载运工具运用工程]