摘要
针对汽车线控转向车辆,以线性二自由度车辆模型为基础,以稳态转向时的横摆角速度作为控制目标,研究了基于控制器参数优化的固定转向灵敏度型横摆角速度反馈控制算法。结果表明,随车速变化,在改变转向比和控制器参数的条件下,车辆横摆角速度能较好地跟随稳态时的横摆角速度。高速时,与相同前轮转角没有反馈控制的车辆相比,最大超调量减少,调整时间减少。
According to the vehicle handling stability of steer by wire,based on a 2 DOF lin-ear vehicle dynamic model,regarded yaw rate of neutral steer as the control objective,the control algorithm of the immobile steering sensibility type based on the parameter optimized about controller was researched.The simulation results show that this method can trail after the neutral steer reference model better and reach steering stabilization of vehicles at different speeds when changing the steer ratio and the parameter of the controller.At high speeds,adopting the controlling method,the maximum ovenshoot decreases and the adjusting time decreases when the vehicle has the same front wheel angle.
出处
《机械与电子》
2014年第10期49-51,共3页
Machinery & Electronics
基金
湖南省教育厅科学研究资助项目(11C0810)
