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:
Oct. 16, 2018
Filed:
Feb. 17, 2017
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Amey Y. Karnik, Canton, MI (US);
Mrdjan J. Jankovic, Birmingham, MI (US);
Michael Howard Shelby, Plymouth, MI (US);
Pravin Sashidharan, Troy, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 13/02 (2006.01); F02D 17/02 (2006.01); F02D 41/30 (2006.01); F02D 37/02 (2006.01); F02D 41/26 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0087 (2013.01); F02D 13/0261 (2013.01); F02D 17/02 (2013.01); F02D 37/02 (2013.01); F02D 41/0002 (2013.01); F02D 41/2406 (2013.01); F02D 41/26 (2013.01); F02D 41/3094 (2013.01); F02D 2200/0408 (2013.01);
Abstract
Systems and methods are provided for increasing the accuracy of air charge estimation for a cylinder that is selectively deactivatable. A controller may deactivate the cylinder in accordance with a firing pattern selected based on torque demand. An air charge estimate of the firing cylinder is then adjusted based on whether the cylinder was fired or skipped on a previous engine cycle when operating according to the selected firing pattern.