增程式电动汽车续驶里程的延长优化  

Extension and Optimization of Range Extended Electric Vehicles

作　　者：吴汪箭 赵婷婷 牛礼民[1] WU Wangjian;ZHAO Tingting;NIU Limin

机构地区：[1]安徽工业大学机械工程学院

出　　处：《汽车工程师》2021年第11期14-18,共5页Automotive Engineer

基　　金：大学生创新创业项目(S201910360248);安徽省教学研究重点项目(2019iyxm0140)。

摘　　要：增程式电动汽车(EREV)是在传统纯电动汽车的基础上配备有增程器(发动机、发电机和整流装置相互构成辅助功能的动力装置),可以增加整车续驶里程。文章以提高续驶里程和燃油经济性为目标,对增程式电动汽车续驶里程的影响因素进行分析、优化,提出一种优化再生制动力的分配策略,并进行了典型工况下的仿真分析。研究表明:利用优化再生制动力的分配策略,考虑电机转速与电池SOC对制动能量回收的影响,适当地控制制动能量回收比例可增加能量回收效率,延长整车续驶里程。Extended-range Electric Vehicle(EREV)is based on the traditional pure electric vehicle,equipped with a range extender(a power unit with auxiliary functions of engine,generator and rectifier),which can increase the driving range of the whole vehicle.In order to improve driving range and fuel economy,this paper analyzes and optimizes the factors affecting the driving range of the extended range electric vehicle,introduces a fuzzy controller to put forward an optimal distribution strategy of regenerative braking force,and carries out simulation analysis under typical working conditions.The results show that the optimal distribution strategy of regenerative braking force,considering the influence of motor speed and battery SOC on braking energy recovery,appropriate control of braking energy recovery ratio can increase the energy recovery efficiency and prolong the vehicle driving range.

关 键 词：增程式电动汽车 续驶里程 再生制动力分配 制动能量回收 

分 类 号：U469.72[机械工程—车辆工程]