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

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

doi:10.1016/j.ifacol.2018.08.411

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 journal › Article › peer-review

8 Citations (Scopus)

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 language	English
Pages (from-to)	764-769
Number of pages	6
Journal	IFAC Proceedings Volumes (IFAC-PapersOnline)
Volume	51
Issue number	11
DOIs	https://doi.org/10.1016/j.ifacol.2018.08.411
Publication status	Published - 1 Jan 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Control and Systems Engineering

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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.",

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AU - Alcántara, D.H.

AU - Menendez, R.M.

AU - Sename, O.

AU - Dugard, L.

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