A simple method for robust control design, application on a non-linear and delayed system: engine torque control

This paper presents a simple method for designing a robust controller which can be used on uncertain and non-linear systems. As an extension of the method, the case of delayed systems is examined. The successive steps of the method are: non-linearity analysis and description, system linearization an...

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Bibliographic Details
Published in:Control engineering practice 2004-04, Vol.12 (4), p.417-429
Main Authors: Chamaillard, Y., Higelin, P., Charlet, A.
Format: Article
Language:English
Subjects:
Delay compensation
Engine torque control
Robust control
Uncertainty model
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Summary:This paper presents a simple method for designing a robust controller which can be used on uncertain and non-linear systems. As an extension of the method, the case of delayed systems is examined. The successive steps of the method are: non-linearity analysis and description, system linearization and identification, operating model design by minimization of a weighted frequencies criteria, model uncertainty design, PI and LQ controller design with robust property verification. A Smith predictor is included in the global control scheme to take the delay of the system into account. The application is a design of a robust controller for engine torque control.
ISSN:0967-0661
1873-6939
DOI:10.1016/S0967-0661(03)00113-8