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Commande multivariable de la pression d'injection dans un moteur diesel common rail

Abstract : Vehicle exhaust emissions are today more and more restrictive. Common Rail engines allow to reach these requirements thanks to the high pressure injection. This pressure can vary from 200 up to 1600 bar according to the engine torque and speed. The goal of this work is to define the rail pressure controller based on the Common Rail features and to improve performance and robustness. Works have been done as follows: study of the Common Rail system and development of the physical model ; development of strategies and command laws ; real tests on vehicle. Vehicle tests showed a high improvement on performance and robustness thanks to the new methodology based on the Common Rail features and the advanced command laws (H8 control for Linear Parameter Varying systems). In particular the Linear Fractional Transformation (LFT) approach has been considered.
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https://tel.archives-ouvertes.fr/tel-00207875
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Submitted on : Friday, January 18, 2008 - 2:56:50 PM
Last modification on : Thursday, November 19, 2020 - 12:59:38 PM
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  • HAL Id : tel-00207875, version 1

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Christophe Gauthier. Commande multivariable de la pression d'injection dans un moteur diesel common rail. Automatique / Robotique. Institut National Polytechnique de Grenoble - INPG, 2007. Français. ⟨tel-00207875⟩

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