电动车最大化能量回收制动力分配策略研究  

Brake-Force Distribution Strategy for Electric Vehicle Based on Maximum Energy Recovery

作　　者：郭金刚[1] 王军平[1] 曹秉刚[1] 

机构地区：[1]西安交通大学机械工程学院

出　　处：《西安交通大学学报》2008年第5期607-611,共5页Journal of Xi'an Jiaotong University

基　　金：汽车安全与节能国家重点实验室开放基金资助项目(KF2007-04)

摘　　要：为了提高电动车的回收能量,通过对汽车制动动力学和相关法规的分析,建立了电机模型和电动车动力传动系模型,从能量回收最大化角度出发,提出了一种前、后轮制动力根据电机制动转矩进行分配的策略,并采用MATLAB/Simulink软件进行了仿真分析.研究结果表明:采用该策略,电动车可满足制动稳定性和法规的要求;与理想制动力分配策略相比,能充分利用电机制动转矩.仿真结果表明,对日本1015道路循环,电机的发电能量提高了56.1%,对其他各种道路循环,电机的发电能量均有较大幅度提高.To heighten electric vehicle（EV） recovery energy, a brake-force distribution strategy based on motor brake torque is proposed from the viewpoint of maximum energy recovery, together with the analysis of the vehicle brake dynamics and related regulations. Motor model and EV power-train model are established, and simulation is carried out with MATLAB/Simulink. The results show that with the adoption of the strategy, the EV meets braking stability and regulations requirement. Compared with the ideal front and rear braking force distribution, the proposed strategy enables to take advantage of motor brake torque, and simulation results show that it can enhance motor regenerative energy by 56.1% for the Japanese 1015 driving cycle. A remarkable motor regenerative energy improvement can be found for the other driving cycles.

关 键 词：电动车 能量回收 制动力分配策略 仿真 

分 类 号：U469.72[机械工程—车辆工程]