Sliding mode control of active suspension systems using a disturbance observer

Author

Deshpande, Vaijayanti S. ; Bhaskara, Mohan ; Phadke, S.B.

Author_Institution

S.T.E.S. NBN Sinhagad Sch. of Eng., Pune, India

fYear

2012

fDate

12-14 Jan. 2012

Firstpage

70

Lastpage

75

Abstract

In this paper a novel active suspension scheme that combines sliding mode control with a disturbance observer is proposed for a quarter car model. The disturbance observer estimates the uncertainties in the system and the unknown road disturbance acting on the unsprung mass. Two control strategies to compensate for the uncertainties and the road disturbance in order to improve the ride comfort are proposed. The stability of the suspension system and the disturbance observer is proved. The efficacy of the method is illustrated by simulation for a vehicle suspension system.

Keywords

compensation; mechanical stability; observers; road vehicles; suspensions (mechanical components); uncertain systems; variable structure systems; active suspension system stability; disturbance observer; quarter car model; ride comfort improvement; sliding mode control; uncertainty estimation; unknown road disturbance; unsprung mass; vehicle suspension system; Adaptation models; Load modeling; Observers; Roads; Sliding mode control; Suspensions; Uncertainty; active suspension; disturbance observer; sliding mode control;

fLanguage

English

Publisher

ieee

Conference_Titel

Variable Structure Systems (VSS), 2012 12th International Workshop on

Conference_Location

Mumbai, Maharashtra

ISSN

2158-3978

Print_ISBN

978-1-4577-2066-6

Electronic_ISBN

2158-3978

Type

conf

DOI

10.1109/VSS.2012.6163480

Filename

6163480