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. 21, 2021
Filed:
Dec. 12, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Michael Kluzner, West Bloomfield, MI (US);
Robert Jentz, Westland, MI (US);
Kenneth John Behr, Farmington Hills, MI (US);
Christopher Weber, Plymouth, MI (US);
Andrew Bagnasco, Plymouth, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1454 (2013.01); F02D 41/1441 (2013.01); F02D 41/1475 (2013.01); F01N 2560/025 (2013.01); F02D 2200/0614 (2013.01);
Abstract
Systems and methods for operating an engine that includes an oxygen sensor and one or more fuel injectors for each engine cylinder are described. In one example, lines describing a relationship between a fuel mass multiplier and a coefficient of a function describing output of an oxygen sensor to a step change in fuel mass are a basis for determining air-fuel imbalance of engine cylinders.