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. 24, 2020
Filed:
Jul. 07, 2017
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
Yichao Guo, Rochester Hills, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02P 5/153 (2006.01); F02D 41/30 (2006.01); F02P 5/15 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1498 (2013.01); F02D 41/30 (2013.01); F02D 2200/1002 (2013.01); F02D 2200/1012 (2013.01); F02D 2200/1015 (2013.01); F02P 5/15 (2013.01); F02P 5/153 (2013.01);
Abstract
Systems and methods for operating an engine operated by a controller that has a capacity to determine whether or not misfire occurs in the engine are presented. In one example, an operating region of the engine is broken into a plurality of zones and a misfire threshold level is dynamically provided for each of the plurality of zones based on slowly updated zone-level statistical parameters and quickly updated buffer-level parameters. The real-time dynamic misfire thresholds provide a basis for determining misfire within the engine.