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:
Sep. 12, 2017
Filed:
May. 14, 2015
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Hassene Jammoussi, Canton, MI (US);
Imad Hassan Makki, Dearborn Heights, MI (US);
Michael Igor Kluzner, Oak Park, MI (US);
Robert Roy Jentz, Westland, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02D 41/24 (2006.01); F02D 41/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/123 (2013.01); F02D 41/0085 (2013.01); F02D 41/1454 (2013.01); F02D 41/1497 (2013.01); F02D 41/247 (2013.01); F02D 41/023 (2013.01); F02D 41/0215 (2013.01); F02D 41/0225 (2013.01); F02D 2200/1002 (2013.01); F02D 2200/1012 (2013.01); F02D 2200/50 (2013.01); F02D 2200/501 (2013.01); F02D 2200/602 (2013.01); F02D 2200/702 (2013.01); F02D 2250/18 (2013.01);
Abstract
Methods and systems are presented for assessing the presence or absence of engine torque deviation which may indicate air-fuel ratio imbalance between engine cylinders. In one example, the method may include assessing the presence or absence of engine torque variation based on engine torque deviation from a desired engine torque during a deceleration fuel shut-off event.