电动汽车制动能量回收系统评价方法研究
The Study on Evaluation Method of Braking Energy Recovery System for Electric Vehicle
摘要 以电动汽车制动能量回收过程中不同能量间的传递关系为研究对象,提出了评价制动能量回收系统的测试方法和评价指标,搭建了电动汽车制动能量回收系统测试平台,并利用该平台对某电动汽车在NEDC工况下的制动能量回收效率进行了研究。试验结果表明,制动回收能量和回收率主要受制动能量回收控制策略、制动初速度和减速度的影响,当制动初速度低于控制策略中设定车速时系统将不进行能量回收;鉴于NEOC工况中制动初速度和减速度比较单一的情况,建议开发一种适用于电动汽车制动能量回收系统评价的工况。
Abstract:
To study transfer relation of different energies during the process of vraking energy recovery of electric vehicle, we propose a set of evaluation methods and indicators for EV vraking energy recovery system, and set up an EV test platform for vraking energy recovery system, which is used to study the recovery efficiency of vraking energy for an EV in NEDC. Test results show that vrake recovery energy and recovery efficiency are affected mainly vy the control strategy of recovery system, initial vraking speed and deceleration. The recovery system does not operate when the initial speed of vraking falls velow the speed set vy the control strategy. However, since the initial speed of vraking and deceleration in NEDC are simple, we propose to develop a new driving condition suitavle for evaluating the vraking energy recovery system of electric vehicles.
Author: Wang Jiguang Li Mengliang Xu Yueyun Fang Maodong
作者单位: 中国汽车技术研究中心
刊 名 汽车技术 ISTICPKU
年,卷(期): 2014, (12)
分类号: U469.72
机标分类号: U46 TP3
在线出版日期: 2015年1月13日
基金项目: 国家高技术研究发展计划,编号2011AA11A286。