H∞Observer for Damper Force in a Semi-Active Suspension

A.E. Vela, D.H. Alcántara, R.M. Menendez, O. Sename, L. Dugard

Research output: Contribution to journalArticle

Abstract

An H∞ observer for the Semi-Active (SA) force of an Electro-Rheological (ER) damper in a Quarter of Vehicle (QoV) model is proposed. This robust observer is designed in the H∞ framework to minimize the effect of the unknown road disturbance on the force estimation and includes the damper nonlinearities and its dynamic behavior. Simulation and experimental rig tests results using a 1/5 scale car using easily accessible measurements for the observer, such as acceleration sensors, which are relatively cheap and easy to implement in a real environment. The estimated damper force could be used in a state feedback control strategy to improve comfort and road holding performance of a vehicle with a reduced number of sensors.
Original languageEnglish
Pages (from-to)764
Number of pages769
JournalIFAC Proceedings Volumes (IFAC-PapersOnline)
Volume51
Issue number11
DOIs
Publication statusPublished - 2018
Externally publishedYes

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Sensors
State feedback
Feedback control
Railroad cars

Cite this

Vela, A.E. ; Alcántara, D.H. ; Menendez, R.M. ; Sename, O. ; Dugard, L. / H∞Observer for Damper Force in a Semi-Active Suspension. In: IFAC Proceedings Volumes (IFAC-PapersOnline). 2018 ; Vol. 51, No. 11. pp. 764.
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H∞Observer for Damper Force in a Semi-Active Suspension. / Vela, A.E.; Alcántara, D.H.; Menendez, R.M.; Sename, O.; Dugard, L.

In: IFAC Proceedings Volumes (IFAC-PapersOnline), Vol. 51, No. 11, 2018, p. 764.

Research output: Contribution to journalArticle

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