Intake boosting is an important method to improve fuel economy of internal combustion engines. Engines can be down-sized, down-speeded, and up-loaded to reduce friction losses, parasitic losses, and pumping losses, and operate at speed-load conditions that are thermodynamically more efficient. Low-temperature combustion engines (LTE) also benefit from down-sizing, down-speeding, and up-loading, but these engines exhibit very low exhaust enthalpy to drive conventional turbochargers. This paper describes modeling, evaluation, and selection of an efficient boost system for a 1.8L four-cylinder Gasoline Direct-Injection Compression-Ignition (GDCI) engine.After a preliminary concept selection phase the model was used to develop the boost system parameters to achieve full-load and part-load engine operation objectives. The simulation was used to demonstrate that a practical boost system can provide the boost necessary at reasonable brake efficiency levels over the entire engine operating range. A comprehensive simulation based calibration was performed to determine the most efficient steady operation settings. Also a step change in speed/load engine operation was simulated to demonstrate the system transient response.


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    Titel :

    Boost System Development for Gasoline Direct-Injection Compression-Ignition (GDCI)


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Husted, Harry (Autor:in) / Sinnamon, James (Autor:in) / Hoyer, Kevin S. (Autor:in) / Sellnau, Mark (Autor:in)

    Kongress:

    SAE 2013 World Congress & Exhibition ; 2013


    Erschienen in:

    Erscheinungsdatum :

    2013-04-08


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Development of a Gasoline Direct Injection Compression Ignition (GDCI) Engine

    Husted, Harry / Sinnamon, James / Hoyer, Kevin et al. | SAE Technical Papers | 2014


    Part-Load Operation of Gasoline Direct-Injection Compression Ignition (GDCI) Engine

    Husted, Harry / Sinnamon, James / Kim, Junghwan et al. | SAE Technical Papers | 2013



    Gasoline Direct Injection Compression Ignition (GDCI) - Diesel-like Efficiency with Low CO2 Emissions

    Husted, Harry / Sinnamon, James / Hoyer, Kevin et al. | SAE Technical Papers | 2011