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:
Jul. 27, 2021
Filed:
Jun. 07, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Rani Kiwan, Ann Arbor, MI (US);
Imtiaz Ali, Lathrup Village, MI (US);
Chris Paul Glugla, Macomb, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02D 17/02 (2006.01); F02P 5/15 (2006.01); F02P 9/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1498 (2013.01); F02D 17/02 (2013.01); F02P 5/15 (2013.01); F02P 9/002 (2013.01);
Abstract
Methods and systems are provided for operating a variable displacement engine that includes a misfire detection system. The misfire detection system corrects engine crankshaft acceleration according to cylinder firing patterns so that misfire detection may be improved. The corrected engine crankshaft accelerations may be compared to threshold crankshaft levels to determine the presence or absence of cylinder misfire.