Optimal design of discrete time preview controllers for semi-active and active suspension systems

被引：0
|
作者：
Iljoong Youn
机构：
[1] Gyeongsang National University,Department of Mechanical Engineering, Research Institute of Industrial Technology
来源：
KSME International Journal | 2000年 / 14卷
关键词：
Discrete Time; Preview Control; Body Force; Attitude Control;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, modified discrete time preview control algorithms for active and semi-active suspension systems are derived based on a simple mathematical 4 DOF half-car model. The discrete time preview control laws for ride comfort are employed in the simulation. The algorithms for MIMO system contain control strategies reacting against body forces that occur at cornering, accelerating, braking, or under payload, in addition to road disturbances. Matlab simulation results for the discrete time case are compared with those for the continuous time case and the appropriateness of the discrete time algorithms are verified by the of simulation results. Passive, active, and semi-active system responses to a sinusoidal input and an asphalt road input are analysed and evaluated. The simulation results show the extent of performance degradation due to numerical errors related to the length of the sampling time and time delay.
引用
收藏
页码：807 / 815
页数：8
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