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Flatness Based Control of a Suspension System: A GPI Observer Approach

Sira-Ramirez, H., Matamoros-Sanchez, A. and Goodall, Roger M. (2011) Flatness Based Control of a Suspension System: A GPI Observer Approach. In: 18th IFAC World Congress, 28th August - 2nd September 2011, Milan, Italy.

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Abstract

We propose a robust, flatness based, approach for active regulation of a railway vehicle suspension system externally perturbed by track irregularities. A simplified perturbed input--to--flat-output model for the vehicle model, which is differentially flat, is established. The observer-based control scheme uses the simplified model considering all the additive state-dependent terms and the influence of external disturbance inputs, as a single lumped unknown but bounded disturbance signal. The proposed GPI observer simultaneously estimates the required flat output associated phase variables allowing to complete the linear feedback loop via on-line disturbance cancellation. Simulations reveal the effectiveness of the approach.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TF Railroad engineering and operation
Schools: School of Computing and Engineering
Related URLs:
Depositing User: Cherry Edmunds
Date Deposited: 03 Jun 2013 12:28
Last Modified: 03 Jun 2013 12:28
URI: http://eprints.hud.ac.uk/id/eprint/17710

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