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. 21, 2012
Filed:
May. 31, 2011
Applicants:
Ross Dykstra Pursifull, Dearborn, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Nate Trask, Dearborn, MI (US);
Inventors:
Ross Dykstra Pursifull, Dearborn, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Nate Trask, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/00 (2006.01); F02M 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for controlling a vehicle engine having a plurality of cylinders is provided. The method comprises: during engine idling, advancing spark timing of at least one cylinder to before a peak torque timing, and retarding spark timing from the advanced timing toward the peak torque timing in response to decreased engine speed to maintain idling speed.