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Communication Dans Un Congrès Année : 2011

Adaptive Backstepping for Uncertain Systems With Time-Delay On-Line Update Laws

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Jonathan Chauvin
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Nicolas Petit

Résumé

This paper addresses the general problem of the equilibrium regulation of potentially unstable linear systems with an unknown input time-delay and unknown parameters in the plant. We extend recent results from the literature where such systems are treated using a backstepping approach applied to a distributed parameters system representation of the delay. Furthering previous approaches, our contribution concerns on-line adaptation of the delay. We develop a local asymptotic convergence result for single-input systems. It is illustrated in simulations on the control of the Air-Fuel Ratio in Spark Ignition engines. The results on this particular example stress the merits of the proposed control algorithm which, with reduced implementation difficulties, reveals sympathetic to on-line applications.
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Dates et versions

hal-00617882 , version 1 (30-08-2011)

Identifiants

  • HAL Id : hal-00617882 , version 1

Citer

Delphine Bresch-Pietri, Jonathan Chauvin, Nicolas Petit. Adaptive Backstepping for Uncertain Systems With Time-Delay On-Line Update Laws. 2011 American Control Conference, Jul 2011, France. pp.4890-4897. ⟨hal-00617882⟩
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