Vehicle stability improvement by active front steering control

被引：0
|
作者：
Chen Deling [1 ]
Yin Chengliang [1 ]
Chen Li [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Automat Engn, Sch Mech Engn, Shanghai 200030, Peoples R China
来源：
19TH INTERNATIONAL CONFERENCE ON DESIGN THEORY AND METHODOLOGY/1ST INTERNATIONAL CONFERENCE ON MICRO AND NANO SYSTEMS, VOL 3, PART A AND B | 2008年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents the vehicle stability improvement by active front steering (AFS) control. Firstly, a mathematical model of the steering system incorporating vehicle dynamics is analyzed based on the structure of the AFS system. Then feedback controller with linear quadratic regulator (LQR) optimization is proposed. In the controller, the assisted motor in the system is controlled by the combination of feedforward method and feedback method. And the feedback parameter is the yaw rate together with the sideslip angle. Due to the difficulties associated with the sideslip angle measurement of vehicle, a state observer is designed to provide real time estimation to meet the demands of feedback. In the last, the system is simulated in MATLAB. The results show that the vehicle handling stability is improved with the AFS control, and the effectiveness of the control system is demonstrated.
引用
收藏
页码：1185 / 1192
页数：8
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