Application of model order reduction to a hydropneumatic vehicle suspension

Author

Lohmann, Boris

Author_Institution

AEG Electrocom, Konstanz, Germany

Volume

3

Issue

1

fYear

1995

fDate

3/1/1995 12:00:00 AM

Firstpage

102

Lastpage

109

Abstract

The simulation, analysis and controller design of technical systems are frequently complicated by the complexity of the corresponding (mostly nonlinear) system models. The method presented here can simplify these tasks by reducing the number of state equations describing the system. Starting from a special state space representation the nonlinear terms are taken over into the reduced model and all couplings of state variables, input variables and nonlinear functions are redetermined. A dominance analysis helps in choosing the system order and the dominant state variables. The order of the treated model of a vehicle suspension is reduced from order 10 to 7 or 5, shortening the simulation time by a factor of 10 or 12, respectively

Keywords

automobiles; hydraulic control equipment; pneumatic control equipment; reduced order systems; state-space methods; dominance analysis; dominant state variables; hydropneumatic vehicle suspension; model order reduction; nonlinear terms; state equations; state space representation; system order; technical systems; Analytical models; Control system analysis; Couplings; Input variables; Nonlinear control systems; Nonlinear equations; Nonlinear systems; State-space methods; Vectors; Vehicles;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.370715

Filename

370715