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

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.

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

Citation Formats

Narayanaswamy, Kushal, Koch, Calvin K., Najt, Paul M., Szekely, Jr., Gerald A., and Toner, Joel G. Method for operating a spark-ignition, direct-injection internal combustion engine. United States: N. p., 2015. Web.
Narayanaswamy, Kushal, Koch, Calvin K., Najt, Paul M., Szekely, Jr., Gerald A., & Toner, Joel G. Method for operating a spark-ignition, direct-injection internal combustion engine. United States.
Narayanaswamy, Kushal, Koch, Calvin K., Najt, Paul M., Szekely, Jr., Gerald A., and Toner, Joel G. 2015. "Method for operating a spark-ignition, direct-injection internal combustion engine". United States. https://www.osti.gov/servlets/purl/1183446.
@article{osti_1183446,
title = {Method for operating a spark-ignition, direct-injection internal combustion engine},
author = {Narayanaswamy, Kushal and Koch, Calvin K. and Najt, Paul M. and Szekely, Jr., Gerald A. and Toner, Joel G.},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/1183446}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 02 00:00:00 EDT 2015},
month = {Tue Jun 02 00:00:00 EDT 2015}
}

Works referenced in this record:

Fuel injection control system for engine
patent, March 1998


Vehicle power train control apparatus
patent, November 2009


Catalyst system for the reduction of NOx and NH3 emissions
patent, January 2010


Cylinder deactivation to reduce fuel enrichment after fuel cutoff modes
patent, March 2014


Method for managing ammonia slip
patent, August 2014


System and Method for Reducing NOx Emissions
patent-application, March 2008


Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines
patent-application, February 2010


Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines
patent-application, May 2010