METHOD AND SYSTEM FOR ENGINE CONTROL

Methods and systems are provided for reducing exhaust temperatures during high engine load conditions in engine systems configured to operate with multiple fuels. Stoichiometric cylinder operation is provided via injection of a gaseous fuel such as CNG. In response to elevated exhaust temperatures,...

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Bibliographic Details
Main Authors SABERWAL DEV, PURSIFULL ROSS DYKSTRA, BADILLO ED, GUIDO SAMUEL
Format Patent
LanguageEnglish
Published 31.07.2014
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Summary:Methods and systems are provided for reducing exhaust temperatures during high engine load conditions in engine systems configured to operate with multiple fuels. Stoichiometric cylinder operation is provided via injection of a gaseous fuel such as CNG. In response to elevated exhaust temperatures, the cylinder is enriched by injecting a liquid fuel, such as gasoline, while maintaining the injection of CNG and while maintaining spark timing at MBT.
Bibliography:Application Number: US201313754667