Multi-objective design for half-car active suspensions

Author

Türkay, Semiha ; Akçay, Hüseyin

Author_Institution

Dept. of Electr. & Electron. Eng., Anadolu Univ., Eskişehir, Turkey

fYear

2012

fDate

17-21 Oct. 2012

Firstpage

246

Lastpage

251

Abstract

In this paper, multi-objective control of a half-car suspension system is formulated as a mixed H₂/H_∞ synthesis problem and this convex problem is solved using linear matrix inequalities. Then, the control design problem is re-formulated as a non-convex and non-smooth optimization problem with fixed order controllers and solved by using the recently developed HIFOO toolbox. Parametric studies show that tire damping can seriously impact closed-loop performance of actively controlled half-car models.

Keywords

H^∞ control; H² control; closed loop systems; control system synthesis; damping; linear matrix inequalities; optimisation; road traffic control; road vehicles; suspensions (mechanical components); tyres; HIFOO toolbox; LMI; actively controlled half-car models; closed loop performance; convex problem; damping; fixed order controllers; half-car active suspension multiobjective design; linear matrix inequalities; mixed H2/H∞ synthesis problem; multiobjective control; nonconvex optimization problem; nonsmooth optimization problem; parametric studies; Acceleration; Damping; Optimization; Roads; Suspensions; Tires; Vehicles; Active suspension; Fixed-order optimization; Half-car model; LMI; Mixed H2/H∞ synthesis; Tire damping;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems (ICCAS), 2012 12th International Conference on

Conference_Location

JeJu Island

Print_ISBN

978-1-4673-2247-8

Type

conf

Filename

6393440