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:
Dec. 15, 2017
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Hoon Cho, Rochester, MI (US);
Brien Fulton, Bloomfield Hills, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 35/02 (2006.01); F02D 41/00 (2006.01); F02D 37/02 (2006.01);
U.S. Cl.
CPC ...
F02D 35/024 (2013.01); F02D 35/023 (2013.01); F02D 37/02 (2013.01); F02D 41/005 (2013.01); F02D 41/008 (2013.01); F02D 41/0077 (2013.01); F02D 41/0007 (2013.01); F02D 2200/04 (2013.01); F02D 2200/101 (2013.01);
Abstract
Methods and systems are provided for estimating maximum in-cylinder pressure for all engine cylinders while reducing the number of individual cylinders required for pressure sensing. Pressure sensing is performed for a single instrumented cylinder. For remaining non-instrumented cylinders, an engine speed-dependent correction factor is applied that compensates for compression pressure variation between cylinders due to intake valve closing differences.