In this paper, we propose a strategy to control the in-cylinder burned gas rate inside the combustion chambers of turbocharged Diesel engines equipped with low pressure EGR loop and VVA actuator. We first design a mean-value model of the in-cylinder composition and validate it on a high frequency reference simulator. Then, we develop the control strategy. It is based on the coordination of existing low-level controllers acting separately on the EGR valve and on the VVA actuator. The objective is to improve transient response, taking into account the responses of the low-level controllers. Supportive simulation results show the relevance of this approach.


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    Title :

    In-cylinder Burned Gas Rate Estimation and Control on VVA Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:
    Chauvin, J. (author) / Bitauld, M. (author) / Petit, N. (author) / Leroy, T. (author)

    Conference:

    SAE World Congress & Exhibition ; 2009



    Publication date :

    2009-04-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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