摘要
在主动前轮转向系统中引入横摆角速度反馈传感器,建立了主动前轮转向系统数学模型和横摆角速度反馈控制模型,使用PID控制器实现横摆角速度反馈控制;系统通过产生附加的前轮转角,对前轮转角进行修正,使车辆转向行驶时的横摆角速度和侧偏角很好地跟踪参考模型;并在系统阶跃和正弦输入下分别进行仿真分析,结果表明,在主动前轮转向系统中引入横摆角速度反馈控制可以显著改善车辆横摆角速度的瞬态响应,从而提高了车辆的转向稳定性。
Using a yaw angle rate sensor into active front steering system,an active front steering system model and the feedback control model of yaw angle rate are build up. The feedback control is achieved by PID control. The system produces accessional steering angle ,which modifies the front steering angle to control yaw angle rate and side slip angle. The control system makes the performance of the actual vehicle model follow ideal vehicle model. The simulation is performed by system step input and system sine input. The results showed that vehicle＇s yaw angle rate response is improved remarkably by introducing yaw feedback into active front steering system. The way can improve stability of vehicle.
出处
《机械设计与制造》
北大核心
2009年第4期203-205,共3页
Machinery Design & Manufacture
基金
江苏工业科技攻关项目(BE2004078)
江苏省教育厅自然科学基金项目(05KJD580049)
关键词
主动前轮转向
横摆角速度
反馈控制
仿真
Active front steering
Yaw angle rate
Feedback control
Simulation
