摘要
建立电动助力转向系统的力学模型,结合经典控制理论,分析比例系数和微分系数对系统助力特性的影响,以ITAE指标为目标函数,采用单纯性法对系统控制参数进行优化,对优化前后结果进行仿真分析,系统时间响应和频率特性曲线结果表明了该优化方法的有效性。
A mechanics model of electric power steering （EPS） is set up in this paper. With the classic theory, the author analyzed the effects of the proportional and derivative coefficients to the assist characteristics of the system. ITAE type optimizing object function was established, and simplex algorithm was used to optimize the control parameters. Comparison between the simulating result of time response and frequency response shows the method is effective.
出处
《农业装备与车辆工程》
2008年第1期31-33,44,共4页
Agricultural Equipment & Vehicle Engineering
关键词
汽车
电动助力转向
单纯形
automobile
electric power steering （EPS）
simplex
