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.:
Date of Patent:
Jan. 22, 2008
Filed:
Jan. 30, 2006
Applicants:
Ognyan N. Yanakiev, Canton, MI (US);
Chan-chiao Lin, Ann Arbor, MI (US);
Sherif H. El Tahry, Troy, MI (US);
Inventors:
Ognyan N. Yanakiev, Canton, MI (US);
Chan-Chiao Lin, Ann Arbor, MI (US);
Sherif H. El Tahry, Troy, MI (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); F02N 25/07 (2006.01); F02B 47/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine control system that having an exhaust gas recirculation (EGR) valve includes a first module that determines an EGR error and a second module that calculates a fuel injection timing based on the EGR error. Operation of an engine is regulated based on the fuel injection timing to reduce emissions during transient operation of the engine.