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:
Mar. 08, 2016
Filed:
Jun. 17, 2011
Applicant:
John R. Bucknell, Royal Oak, MI (US);
Inventor:
John R. Bucknell, Royal Oak, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 47/08 (2006.01); F02M 25/07 (2006.01); F02D 41/00 (2006.01); F02D 13/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0062 (2013.01); F02D 41/0072 (2013.01); F02D 13/0265 (2013.01); F02M 25/0715 (2013.01); F02M 25/0752 (2013.01); Y02T 10/47 (2013.01);
Abstract
A control system for an engine includes first and second modules. The first module estimates a total amount of exhaust gas recirculation (EGR) in the engine, wherein the total amount of EGR includes (i) EGR within cylinders of the engine and (ii) EGR flowing through an EGR system of the engine. The second module selectively controls an overlap of intake and exhaust valve timing in the engine based on (i) a position of an EGR valve in the EGR system and (ii) a comparison of the estimated total amount of EGR in the engine and an EGR threshold.