摘要
研究双轮毂电机搭建的电动试验车实验平台,为提高车辆转弯速度响应性能,采用阿克曼转速控制系统,在MATLAB/simulink中建立差速控制模型,结合直流无刷电机BLDC的控制系统模型进行联合仿真,通过速度闭环和电流滞环双环控制方法实现对电动汽车在直线行驶的轮毂电机转速、转弯时车轮差速控制与转矩分配。对电动汽车直线和转弯行驶时的差速特性进行仿真分析,仿真结果表明,差速控制方法可满足电动试验车直线行驶、转向行驶时,对差速控制和轮毂电机输出转矩控制的要求。
Based on the double wheel hub motor experimental platform of electric vehicle, we used Ackerman speed control system to establish differential velocity control model with MATLAB/simulink, carried out united simulation in light of the control system model of BLDC, and realized the wheel hub motor rotational speed control in electric vehicle straight driving and. Simulation analysis was carried out with the differential speed of electric vehicles in the straight and wheel differential speed control and torque distribution in turning via close - loop speed and hysteresis current double - loop control method. Making the simulated analysis of differential velocity property in electric vehicles straight and turning driving, and the results show that the differential velocity control method can satisfy requirements of the test eleetric vehicle＇s demand on differential and wheel hub motor output torque control in straight and turning driving.
出处
《计算机仿真》
CSCD
北大核心
2015年第12期107-112,254,共7页
Computer Simulation
关键词
轮毂电机
差速转向模型
电流滞环控制
速度闭环控制
Wheel hub motor
Differential steering model
Hysteresis currentcontrol
Speed closed -lo
