轮毂电机驱动电动汽车各轮毂电机扭矩分配算法的仿真和评价

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轮毂电机驱动电动汽车各轮毂电机扭矩分配算法的仿真和评价

作者：熊 璐 余卓平

来源：《计算机辅助工程》2010年第01期

摘 要:为精确控制轮毂电机驱动电动汽车各轮毂电机的扭矩,获得更好的车辆动力学控制性能,利用Matlab/Simulink对再分配伪逆算法(Redistributed Pseudo-Inverse algorithm,RPI)、层叠广义逆法(Cascading Generalized Inverse algorithm, CGI)和加权最小二乘法(Weighted Least-Squares algorithm, WLS)进行数值仿真,对这3种算法从计算速度、迭代次数和计算精度等方面进行对比分析与评价,结果表明WLS综合性能最优.

关键词:轮毂电机驱动电动汽车; 电机扭矩分配; 再分配伪逆算法; 层叠广义逆法; 加权最小二乘法

中图分类号:U461.6; U469.72 文献标志码

Simulation and evaluation on torque distribution algorithm of in-wheel motor of in-wheel drive electric vehicle XIONG Lu, YU Zhuoping

(College of Automotive Eng., Tongji Univ., Shanghai 201804, China)

Abstract: To control the torque of all in-wheel motors for in-wheel motor drive electric vehicle accurately, and to achieve the better control performance of automotive dynamics, numerical

simulation are performed on Redistributed Pseudo-Inverse algorithm(RPI), Cascading Generalized Inverse algorithm(CGI) and Weighted Least-Squares algorithm(WLS), and the calculation speed, iteration times and calculation accuracy of the three algorithms are compared and evaluated. The result shows that WLS has the best comprehensive performance.

Key words: in-wheel motor drive electric vehicle; motor torque distribution; redistributed

pseudo-inverse algorithm; cascading generalized inverse algorithm; weighted least-square algorithm 收稿日期:2009-05-05 修回日期:2009-09-16