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:
Dec. 12, 2017
Filed:
Aug. 15, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Chris Paul Glugla, Macomb, MI (US);
Steven Schwochert, Garden City, MI (US);
Ken Jahr, West Bloomfield, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/40 (2006.01); F02D 17/02 (2006.01); F02D 43/00 (2006.01); F02D 41/38 (2006.01); F02P 5/15 (2006.01); F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
F02D 17/02 (2013.01); F02D 41/005 (2013.01); F02D 41/0025 (2013.01); F02D 41/0087 (2013.01); F02D 41/0245 (2013.01); F02D 41/3836 (2013.01); F02D 41/402 (2013.01); F02D 43/00 (2013.01); F02P 5/1512 (2013.01); F02D 41/064 (2013.01); F02D 2200/021 (2013.01); F02D 2200/0802 (2013.01); Y02T 10/26 (2013.01); Y02T 10/44 (2013.01); Y02T 10/46 (2013.01); Y02T 10/47 (2013.01);
Abstract
Methods and systems are provided for improving the performance of a variable displacement engine. Split injection and spark retard may be used in active cylinder during a VDE mode to heat an exhaust catalyst and extend the duration of VDE mode operation. Split injection and spark retard may also be used in reactivated cylinders at a time of cylinder reactivation to improve restart combustion stability.