A COMPARISON OF ADAPTIVE LQG AND NONLINEAR CONTROLLERS FOR VEHICLE SUSPENSION SYSTEMS

被引:52
|
作者
GORDON, TJ
MARSH, C
MILSTED, MG
机构
[1] Department of Mathematical Sciences, University of Technology, Leicestershire, LE11 3TU, Loughborough
[2] Department of Transport Technology, University of Technology, Leicestershire, LE11 3TU, Loughborough
关键词
D O I
10.1080/00423119108968993
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A design feature of many computer-controlled suspension systems, is their ability to adapt control law parameters to suit prevailing road conditions. Here, for systems employing high bandwidth actuators and state variable feedback control, the benefits of such adaptation are shown to be at best marginal. An optimal adaptive LQG system is compared with a fixed structure nonlinear feedback controller in the context of a simple quarter-vehicle suspension model. Performance comparisons are made, and trends considered under more realistic conditions. In consequence the overall usefulness of this type of adaptation is called into question.
引用
收藏
页码:321 / 340
页数:20
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