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

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.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
1183446
Report Number(s):
9,046,051
13/156,655
DOE Contract Number:
EE0003379
Resource Type:
Patent
Research Org:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS