Method for operating a spark-ignition, direct-injection internal combustion engine

Narayanaswamy, Kushal; Koch, Calvin K.; Najt, Paul M.; Szekely, Jr., Gerald A.; Toner, Joel G.

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DOE OSTI · 1183446

Method for operating a spark-ignition, direct-injection internal combustion engine

Narayanaswamy, Kushal·Koch, Calvin K.·Najt, Paul M.·Szekely, Jr., Gerald A.·Toner, Joel G.

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Abstract

A spark-ignition, direct-injection internal combustion engine is coupled to an exhaust aftertreatment system including a three-way catalytic converter upstream of an NH3-SCR catalyst. A method for operating the engine includes operating the engine in a fuel cutoff mode and coincidentally executing a second fuel injection control scheme upon detecting an engine load that permits operation in the fuel cutoff mode.

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Narayanaswamy, Kushal, Koch, Calvin K., Najt, Paul M., Szekely, Jr., Gerald A., Toner, Joel G.. 2015-06-02. Method for operating a spark-ignition, direct-injection internal combustion engine. https://www.osti.gov/biblio/1183446

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