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:
Feb. 18, 2020
Filed:
Mar. 01, 2012
Applicants:
Stephen William Magner, Farmington Hills, MI (US);
Mrdjan J. Jankovic, Birmingham, MI (US);
Inventors:
Stephen William Magner, Farmington Hills, MI (US);
Mrdjan J. Jankovic, Birmingham, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/18 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/182 (2013.01); F02D 41/1441 (2013.01); F02D 41/1454 (2013.01); F02D 41/1455 (2013.01); F02D 41/1456 (2013.01); F01N 2550/02 (2013.01); F01N 2560/025 (2013.01); F02D 41/0072 (2013.01); F02D 41/14 (2013.01);
Abstract
A method is provided for controlling an engine exhaust with an upstream sensor and a downstream sensor. The method comprises adjusting a set-point for the downstream sensor based on a rate of change of air mass flow upstream of the engine and adjusting fuel injection to control exhaust fuel-air ratio (FAR) at the downstream sensor to the adjusted set-point, and to control exhaust FAR at the upstream sensor to an upstream sensor set-point.