A theoretical-experimental analysis of a VVT engine and a methodology for the definition of its control map is presented. The analyses are based on the employment of a very accurate engine code, developed by the authors, which belongs to the category of the wave propagation models. The code is validated by comparison with experimental data collected on a traditionally fixed- and a variable-valve timing engine as well. The model is also linked to an efficient optimization procedure, which is able to select - for each assigned operating condition - the most appropriate values of control parameters (spark advance, intake/exhaust valve opening/closing, and valve lift), with the objective of pursuing torque or BSFC improvements, idle stability and emission control.


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    Title :

    A Methodology for the Definition of Optimal Control Strategies of a VVT-Equipped SI Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Gimelli, A. (author) / Senatore, A. (author) / Bozza, F. (author) / Cardone, M. (author) / Tuccillo, R. (author)

    Conference:

    2001 Internal Combustion Engines ; 2001



    Publication date :

    2001-09-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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