Adaptive observer for active automotive suspensions

R. Rajamani, J. K. Hedrick

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations


An adaptive observer for a class of nonlinear systems is developed. Conditions for convergence of state estimates and parameters are presented. The developed theory is used for observer-based parameter identification in the active suspension system of an automobile. The observer uses measurements from two accelerometers and an LVDT. It adapts on dry friction which is usually present in significant magnitudes in hydraulic actuators of active suspensions. Experimental results on a half-car suspension test rig are presented.

Original languageEnglish (US)
Title of host publicationAmerican Control Conference
Editors Anon
PublisherPubl by IEEE
Number of pages5
ISBN (Print)0780308611
StatePublished - Dec 1 1993
EventProceedings of the 1993 American Control Conference Part 3 (of 3) - San Francisco, CA, USA
Duration: Jun 2 1993Jun 4 1993

Publication series

NameAmerican Control Conference


OtherProceedings of the 1993 American Control Conference Part 3 (of 3)
CitySan Francisco, CA, USA


Cite this

Rajamani, R., & Hedrick, J. K. (1993). Adaptive observer for active automotive suspensions. In Anon (Ed.), American Control Conference (pp. 706-710). (American Control Conference). Publ by IEEE.