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.
|Number of pages
|IFAC Proceedings Volumes (IFAC-PapersOnline)
|Published - 2011
|18th World Congress: The International Federation of Automatic Control - Milano, Italy
Duration: 28 Aug 2011 → 2 Sep 2011
Conference number: 18