6533b838fe1ef96bd12a48f3

RESEARCH PRODUCT

Static output-feedback control for vehicle suspensions: a single-step linear matrix inequality approach

Josep M. RossellHamid Reza KarimiFrancisco Palacios-qui NoneroJosep Rubió-massegú

subject

Output feedbackEngineeringOptimization problemArticle Subject:Informàtica::Automàtica i control [Àrees temàtiques de la UPC]General MathematicsSingle stepFeedback control systemsMatrius (Matemàtica)Vehicles -- Ressorts i suspensió:93 Systems Theory; Control [Classificació AMS]Deflection (engineering)Control theoryControlMatrix inequalitiesSuspension (vehicle):93 Systems Theory [Classificació AMS]Vehicles--Springs and suspensionbusiness.industrylcsh:MathematicsGeneral EngineeringLinear matrix inequality:Matemàtiques i estadística [Àrees temàtiques de la UPC]Control engineeringlcsh:QA1-939lcsh:TA1-2040Sistemes de control per retroaccióSprung masslcsh:Engineering (General). Civil engineering (General)business

description

In this paper, a new strategy to design static output-feedback controllers for a class of vehicle suspension systems is presented. A theoretical background on recent advances in output-feedback control is first provided, which makes possible an effective synthesis of static output-feedback controllers by solving a single linear matrix inequality optimization problem. Next, a simplified model of a quarter-car suspension system is proposed, taking the ride comfort, suspension stroke, road holding ability, and control effort as the main performance criteria in the vehicle suspension design. The new approach is then used to design a static output-feedbackH∞controller that only uses the suspension deflection and the sprung mass velocity as feedback information. Numerical simulations indicate that, despite the restricted feedback information, this static output-feedbackH∞controller exhibits an excellent behavior in terms of both frequency and time responses, when compared with the corresponding state-feedbackH∞controller.

yearjournalcountryeditionlanguage
2013-12-20
10.1155/2013/907056http://hdl.handle.net/2117/28020