The effects of fuel properties on the emissions of a production vehicle with a gasoline direct injection engine operating over the Federal Test Procedure (FTP) cycle were investigated. The vehicle used was a 1998 Toyota Corona passenger car with a direct injection spark ignition (DISI) engine. Engine-out and tailpipe FTP emissions for six fuels and a California Phase 2 RFG reference fuel are presented. Four of the test fuels were blended from refinery components to meet specified distillation profiles. The remaining test fuels were iso-octane and toluene, an iso-alkane and an aromatic with essentially the same boiling point (at atmospheric pressure) that is near the T50 point for the blended fuels. Statistically significant effects, at the 95% confidence level, of the fuels on tailpipe emissions were found. Correlations were sought between the properties of the five blends and the Emissions Indices for engine-out hydrocarbons and NOx and for tailpipe particulates. Correlations were also investigated for relationships between fuel properties and the efficiency of the oxidation catalyst and of the lean NOx trap/catalyst. The correlations identified are discussed.


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    Titel :

    Effects of Fuel Parameters on FTP Emissions of a 1998 Toyota with a Direct Injection Spark Ignition Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Johnson, B. E. (Autor:in) / Larsen, Bob (Autor:in) / Stovell, Chad (Autor:in) / Ng, Henry (Autor:in) / Kirwan, John (Autor:in) / Matthews, Ronald D. (Autor:in)

    Kongress:

    CEC/SAE Spring Fuels & Lubricants Meeting & Exposition ; 2000



    Erscheinungsdatum :

    2000-06-19




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Emissions and Fuel Economy of a 1998 Toyota with a Direct Injection Spark Ignition Engine

    Johnson, B. E. / Larsen, Bob / Stovell, Chad et al. | SAE Technical Papers | 1999


    Emissions and fuel economy of a 1998 Toyota with a direct injection spark ignition engine

    Stovell,C. / Matthews,R. / Ng,H. et al. | Kraftfahrwesen | 1999


    Effect of Fuel Parameters on Speciated Hydrocarbon Emissions from a Direct Injection Spark Ignition Engine

    Johnson, B. E. / Larsen, Bob / Stovell, Chad et al. | SAE Technical Papers | 2000