摘要
针对A型纯电动客车EHPS助力电机恒定高速运转的问题,本文设计理想转向盘力矩曲线,建立A型纯电动客车的整车模型和EHPS系统模型,推导出理想EHPS助力特性曲线,得到各车速及转向盘转角下的目标电机转速。基于Simulink和AMESIM对模型进行联合仿真,仿真结果表明:助力电机转速控制优化后的EHPS能满足车辆低速转向时的轻便性和高速转向时驾驶员的路感,并改善节能性。
Regarding the problem of the pure electric bus of model A EHPS power motor operating at a constant high speed,an ideal steering wheel torque curve is designed.The vehicle model and the EHPS model are set up.The ideal EHPS assist characteristic curve is deduced,and the target speed of motor under different speed and different steering wheel angle is obtained.The model is simulated based on Simulink and AMESIM.The simulation result shows that after the optimization of EHPS power motor speed control,the EHPS satisfies the portability in low speed steering and the road feeling of driver in high speed steering,and also improves the ability of energy saving.
作者
朱庆华
闵永军
张涌
赵万忠
陈鹏
闫鹏鹏
ZHU Qinghua;MIN Yongjun;ZHANG Yong;ZHAO Wanzhong;CHEN Peng;YAN Pengpeng(College of Automobile and Traffic Engineering,Nanjing Forestry University,Nanjing 210037)
出处
《森林工程》
2019年第1期53-58,共6页
Forest Engineering
基金
国家自然科学基金(51775268)
新能源汽车电动动力电池热管理及成组一体化关键技术研发(013106303)
关键词
EHPS
助力电机
转速控制
助力特性
仿真
EHPS
power motor
speed control
assist characteristic
simulation