This paper presents a simulation model for the cold start fuel calibration (CSFC) in port-fuel-injection gasoline engines. The model is based on data that are readily available during the regular engine tests. The model has been applied to two production multipoint-port-fuel-injection spark ignition gasoline engines. The model determines the amount of fuel vaporized in the intake port at any crank angle degree, and in the cylinder on cycle-by-cycle basis, during the cold start process. The optimal CSFC can be developed from the simulation results, potentially reduce the development time and cost of testing. The model works with any combinations of fuel compoments, and at various cold start soaking temperatures. The excellent flexibility makes this model an efficient tool for CSFC.


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    Title :

    Port-Fuel-Injection Gasoline Engine Cold Start Fuel Calibration


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2006 World Congress & Exhibition ; 2006



    Publication date :

    2006-04-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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