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. 22, 2022
Filed:
May. 23, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Mohannad Hakeem, Dearborn, MI (US);
Arney Yogesh Karnik, Canton, MI (US);
James Kindree, South Lyon, MI (US);
Christopher Glugla, Macomb, MI (US);
Robert Baskins, Grass Lake, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/28 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02P 5/152 (2006.01); F02D 35/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/28 (2013.01); F02D 35/027 (2013.01); F02D 41/009 (2013.01); F02D 41/1498 (2013.01); F02P 5/152 (2013.01); F02D 2041/281 (2013.01); F02D 2041/286 (2013.01);
Abstract
Methods and systems are provided for operating a variable displacement engine that includes a knock control system. Engine knock background noise levels determined during all cylinders operating mode may be determined via two filters that are constructed in parallel. Output of the two filters may be the basis for determining the presence or absence of engine knock.