This paper presents a detailed optical and thermodynamic analysis of effects which influences the soot formation and oxidation process during Diesel combustion. To measure the actual soot concentration over crank angle an optical sensor was installed on the engine. In combination with a thermodynamic engine process calculation, based on the measured cylinder pressure, several important effects are analyzed and described in detail. The main focus of the paper is to produce knowledge on how soot dynamics is influenced by changed engine control unit (ECU) calibration parameters. A modern 4 cylinder production car Diesel engine was used for the studies, which offers a lot of opportunities to influence combustion by varying injection timing and air path ECU parameters. As a consequence discussion is done on how the analyzed effects are treated by published 0-dimensional simulation models with focus on later control and optimization application.


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    Title :

    Control Oriented Crank Angle Based Analysis of Soot Dynamics During Diesel Combustion


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2010 Powertrains Fuels & Lubricants Meeting ; 2010



    Publication date :

    2010-10-25




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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