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:
Mar. 13, 2012
Filed:
Jan. 25, 2007
Applicants:
James Ervin, Novi, MI (US);
Yan Wang, Ann Arbor, MI (US);
Thomas Megli, Dearborn, MI (US);
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of operating an engine including at least a cylinder and a valve controlled by an electric valve actuator is disclosed. In one example, a valve holding current is determined during movement of the valve. The method may be useful for determining individual holding currents for specific valve actuators.