Static output-feedback controller design for vehicle suspensions: an effective two-step computational approach

In this study, a novel two-step methodology is applied in designing static output-feedback controllers for a class of vehicle suspension systems. Following this approach, an effective synthesis of static output-feedback controllers can be carried out by solving two consecutive linear matrix inequali...

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Bibliographic Details
Published in:IET control theory & applications Vol. 8; no. 15; pp. 1566 - 1574
Main Authors: Rubió-Massegú, Josep, Palacios-Quiñonero, Francisco, Rossell, Josep M, Karimi, Hamid Reza
Format: Journal Article Publication
Language:English
Published: The Institution of Engineering and Technology 16.10.2014
Subjects:
93 Systems Theory; Control
automobiles
Automàtica i control
Classificació AMS
consecutive linear matrix inequality optimisation problem
control system synthesis
Control systems
Control theory
Controllers
Design engineering
Feedback
Feedback control systems
feedback information
frequency response
H∞ control
Informàtica
Linear matrix inequalities
Matemàtiques i estadística
Matrius (Matemàtica)
Matrix inequalities
Optimization
quarter‐car suspension system
Ressorts i suspensió
Sistemes de control per retroacció
Springs and suspension
sprung mass velocity
Static output-feedback control
static output‐feedback controller synthesis
static output‐feedback H∞ controller design
Strategy
suspension deflection
Suspension systems (vehicles)
suspensions (mechanical components)
time response
two‐step computational approach
vehicle suspension systems
Vehicle suspensions
Vehicles
Àrees temàtiques de la UPC
automobiles
suspensions (mechanical components)
consecutive linear matrix inequality optimisation problem
control system synthesis
time response
feedback
two-step computational approach
H∞ control
linear matrix inequalities
suspension deflection
static output-feedback controller synthesis
quarter-car suspension system
static output-feedback H∞ controller design
feedback information
vehicle suspension systems
frequency response
sprung mass velocity
ISSN:1751-8644, 1751-8652
Online Access:Get full text
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Description
Summary:In this study, a novel two-step methodology is applied in designing static output-feedback controllers for a class of vehicle suspension systems. Following this approach, an effective synthesis of static output-feedback controllers can be carried out by solving two consecutive linear matrix inequality optimisation problems. To illustrate the main features of the proposed design strategy, two different static output-feedback H∞ controllers are designed for a quarter-car suspension system. The first of those controllers uses the suspension deflection and the sprung mass velocity as feedback information, whereas the second one only requires the sprung mass velocity to compute the control actions. Numerical simulations indicate that, despite the restricted feedback information, the proposed static output-feedback H∞ controllers exhibit a good behaviour in terms of both frequency and time responses, when compared with the corresponding state-feedback H∞ controller.
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ISSN:1751-8644
1751-8652
DOI:10.1049/iet-cta.2013.1129