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:
May. 03, 2016
Filed:
Feb. 11, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Mrdjan J. Jankovic, Birmingham, MI (US);
Stephen William Magner, Farmington Hills, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
B60T 7/12 (2006.01); F02D 41/30 (2006.01); F02D 41/14 (2006.01); F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/30 (2013.01); F02D 41/1401 (2013.01); F02D 41/1402 (2013.01); F02D 41/1454 (2013.01); F02D 41/1473 (2013.01); F02D 41/1495 (2013.01); F02D 2041/142 (2013.01); F02D 2041/143 (2013.01); F02D 2041/1418 (2013.01); F02D 2041/1431 (2013.01); F02D 2041/1433 (2013.01); F02D 2041/2027 (2013.01);
Abstract
Various embodiments relating to air-fuel ratio control are described herein. In one embodiment a method includes adjusting fuel injection to an engine responsive to air-fuel ratio sensor feedback with a first control structure, and in response to an air-fuel ratio sensor asymmetric degradation, adjusting fuel injection to the engine responsive to air-fuel ratio sensor feedback with a second, different, control structure.