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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9982637 B1

PDFFull Text
Date of Patent:
May. 29, 2018

Filed:

Nov. 17, 2015

Method and system for engine control

Applicant:

General Electric Company, Schenectady, NY (US);

Inventor:

Manoj Prakash Gokhale, Bangalore, IN;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:

GE Global Patent Operation

John A. Kramer

Primary Examiner:

Brandon Lee

Int. Cl.
CPC ...
F02D 23/02 (2006.01); F02M 26/05 (2016.01); F02D 41/40 (2006.01); F02D 21/08 (2006.01); F02D 41/00 (2006.01); F02M 26/08 (2016.01); F02B 37/00 (2006.01); F02B 37/007 (2006.01); F02B 37/013 (2006.01); F02M 26/00 (2016.01); F02B 29/04 (2006.01); F02M 26/25 (2016.01); F02D 41/08 (2006.01);
U.S. Cl.
CPC ...
F02M 26/05 (2016.02); F02B 37/001 (2013.01); F02B 37/004 (2013.01); F02B 37/007 (2013.01); F02B 37/013 (2013.01); F02D 21/08 (2013.01); F02D 23/02 (2013.01); F02D 41/0007 (2013.01); F02D 41/0052 (2013.01); F02D 41/401 (2013.01); F02M 26/08 (2016.02); F02B 29/0412 (2013.01); F02D 41/08 (2013.01); F02M 26/25 (2016.02); F02M 2026/005 (2016.02);
Abstract

A system includes a controller that is configured to respond to engine load being at a designated engine load point by operating an engine with a lower exhaust gas recirculation (EGR) amount and a more advanced fuel injection timing than any other steady-state engine load point when EGR and fuel injection are enabled. The controller is further configured to respond to engine load being within a range of engine load points around the designated engine load point by increasing the EGR amount and retarding fuel injection timing as load increases and as load decreases away from the designated engine load point. This may result in decreased fuel consumption while maintaining emissions below designated levels.

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