In this paper a novel ion current based estimation scheme for the in-cylinder pressure peak position (PPP) is proposed. A reliable estimate is constructed by appropriate signal processing based on local curvatures of the post flame phase of the ion current. The peak-finding algorithm is simple and easy to implement in an engine control unit for feedback control of the combustion phasing. Results on real data, sampled onboard a commercial car are presented. Further, the performance of the algorithm is compared to two state of the art algorithms for PPP estimation from the ion current. The comparison shows that the algorithm presented in this paper outperforms its competitors1.


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    Titel :

    An Ion Current Based Peak-Finding Algorithm for Pressure Peak Position Estimation


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hellring, Magnus (Autor:in) / Holmberg, Ulf (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 2000



    Erscheinungsdatum :

    2000-10-16




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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