Adjusting stiffness of air spring and damping of oil damper using fuzzy controller for vehicle seat vibration isolation

Author

Huseinbegovic, Senad ; Tanovic, Omer

Author_Institution

Dept. for Autom., Control & Electron., Univ. of Sarajevo, Sarajevo

fYear

2009

fDate

27-28 March 2009

Firstpage

83

Lastpage

92

Abstract

In this paper we present one of the concepts of vehicle seat vibration damping, using a fuzzy controller. We used a fuzzy controller as a part of a semi-active vehicle suspension system, which consists of semi-active air spring and semi-active damper. System is implemented between the cabin floor and vehicle seat. Fuzzy controller is designed to adjust the stiffness of the air spring and damping of the oil damper, in order to isolate the vertical vibrations that are being caused by rough road surfaces. Input data for fuzzy controller are cabin floor acceleration, vehicle seat deflection and velocity of the vehicle seat deflection. Measure of the quality of suspension is the SEAT value, which is calculated as a quotient of effective seat vertical acceleration and effective cabin vertical acceleration (ISO 2631-1 standard).

Keywords

control system synthesis; fuzzy control; fuzzy systems; road vehicles; shock absorbers; springs (mechanical); vibration isolation; cabin floor acceleration; fuzzy controller design; semiactive air spring; semiactive oil damper; semiactive road vehicle suspension system; vehicle seat deflection velocity; vehicle seat vibration damping; vehicle seat vibration isolation; Acceleration; Accelerometers; Damping; Fuzzy control; ISO standards; Petroleum; Shock absorbers; Springs; Vehicles; Vibration control; Control; fuzzy systems; vehicle seat; vibration isolation;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Communications, 2009. SIBCON 2009. International Siberian Conference on

Conference_Location

Tomsk

Print_ISBN

978-1-4244-2007-0

Type

conf

DOI

10.1109/SIBCON.2009.5044834

Filename

5044834