Engine operation with spark ignition retarded from MBT timing is used at cold start to reduce HC emissions and increase exhaust gas temperature; however it also results in increased cyclic variations. Steady-state cold fluids testing was performed to better understand the causes of the cycle-to-cycle variations. Detailed analysis of individual cycles was performed to help gain an understanding of the causes of cyclic variations. The important results were:


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    Titel :

    SI Engine Operation with Retarded Ignition: Part 1 - Cyclic Variations


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lavoie, G. (Autor:in) / Russ, S. (Autor:in) / Dai, W. (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1999



    Erscheinungsdatum :

    1999-10-25




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Russ,S. / Lavoie,G. / Dai,W. et al. | Kraftfahrwesen | 1999


    Spark-ignition engine operation with retarded ignition: part 2 - HC emissions and oxidation

    Russ,S. / Thiel,M. / Lavoie,G. et al. | Kraftfahrwesen | 1999


    SI Engine Operation with Retarded Ignition: Part 2 -HC Emissions and Oxidation

    Lavoie, G. / Thiel, M. / Russ, S. | SAE Technical Papers | 1999


    A Simple Model for Cyclic Variations in a Spark-Ignition Engine

    Finney, C. E. A. / Daw, C. S. / Connolly, F. T. et al. | SAE Technical Papers | 1996


    A simple model for cyclic variations in a spark-ignition engine

    Daw,C.S. / Finney,C.E. / Green,J.B. et al. | Kraftfahrwesen | 1996