LPV control active suspension system

Levent Ucun, Ibrahim B. Kucukdemiral, Akin Delibasi, Galip Cansever

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

The L2 gain control problem for disturbance attenuation in Linear Parameter Varying (LPV) Systems with saturating actuators has been addressed in this paper. The active suspension system which is used as a benchmark control problem is subjected to L2 disturbances and actuator saturation. Actuator saturation nonlinearity is reformalized in terms of some convex hull of linear feedback. This point of view allows us to construct L2 control problem having actuator saturation nonlinearities as a convex optimization problem. Nested ellipsoids have been used to measure the stability and disturbance rejection capabilities of the control system. At this point, the inner ellipsoid covers the initial conditions of states whereas the outer ellipsoid designates the L2 gain of the system. Finally, the proposed method has been applied to an active suspension system having linear time-varying parameter such as suspension spring constant. The results have been verified on a real experimental system. Experimental results demonstrate the efficiency of the proposed method.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Mechatronics, ICM 2011 - Proceedings
PublisherIEEE
Pages116-121
Number of pages6
ISBN (Print)9781612849836
DOIs
Publication statusPublished - 1 Aug 2011
Externally publishedYes
Event2011 IEEE International Conference on Mechatronics, ICM 2011 - Istanbul, Turkey
Duration: 13 Apr 201115 Apr 2011

Publication series

Name2011 IEEE International Conference on Mechatronics, ICM 2011 - Proceedings

Conference

Conference2011 IEEE International Conference on Mechatronics, ICM 2011
CountryTurkey
CityIstanbul
Period13/04/1115/04/11

Keywords

  • Active Suspension System
  • Actuator Saturation Nonlinearity
  • L gain control
  • Linear Matrix Inequalities
  • LPV Control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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