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Title: Active control of one or more EGR loops

Patent ·
OSTI ID:1374561
; ;

Active control of one or more exhaust gas recirculation loops is provided to manage and EGR fraction in the charge flow to produce desired operating conditions and/or provide diagnostics in response to at least one of an oxygen concentration and a NOx concentration in the charge flow and in the exhaust flow.

Research Organization:
Cummins Inc. Columbus, IN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0004125
Assignee:
Cummins Inc.
Patent Number(s):
9,726,091
Application Number:
14/215,216
OSTI ID:
1374561
Resource Relation:
Patent File Date: 2014 Mar 17
Country of Publication:
United States
Language:
English

References (19)

Low emission diesel combustion system with low charge-air oxygen concentration levels and high fuel injection pressures patent February 2005
Dual path EGR system and methods patent May 2005
Optimized combustion control of an internal combustion engine equipped with exhaust gas recirculation patent September 2005
Emission reduction in a diesel engine by selective use of high-and low-pressure EGR loops patent December 2005
Methods for low emission, controlled temperature combustion in engines which utilize late direct cylinder injection of fuel patent May 2006
System and method for adjusting the exhaust gas recirculation rate in an internal combustion engine patent August 2007
Method of controlling elements used to execute elementary functions of an internal combustion engine patent December 2007
System and method for diagnostic of low pressure exhaust gas recirculation system and adapting of measurement devices patent May 2008
System and method for diagnostic of low pressure exhaust gas recirculation system and adapting of measurement devices patent February 2009
Exhaust gas control system for internal combustion engine patent September 2010
Exhaust recirculation apparatus for engine and method for controlling the same patent November 2010
Exhaust gas recirculation system for internal combustion engine and method for controlling the same patent August 2011
Methods and systems for emission system control patent January 2012
Intake system for internal combustion engine patent November 2013
Exhaust-gas recirculation apparatus and exhaust-gas recirculation flow rate estimation method for internal combustion engines patent August 2010
Controlling exhaust gas recirculation in a turbocharged engine system patent January 2011
Exhaust gas recirculation apparatus for an internal combustion engine patent-application March 2011
Exhaust gas recirculation system with a NOx sensor patent-application April 2011
Method and system for controlling an engine during tunneling operation patent January 2013

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