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:
Sep. 20, 2005
Filed:
Mar. 04, 2003
Applicants:
Songping Yu, Troy, MI (US);
Gene Andersen, Trenton, MI (US);
Michael John Cullen, Northville, MI (US);
Eric S. Levine, Novi, MI (US);
Inventors:
Songping Yu, Troy, MI (US);
Gene Andersen, Trenton, MI (US);
Michael John Cullen, Northville, MI (US);
Eric S. Levine, Novi, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D009/10 ; F02M035/10 ;
U.S. Cl.
CPC ...
Abstract
A valve control and diagnostic system uses physical stops to determine whether a connection between the valve motor and the valves has become degraded. The method can detect degradation in both the opening and closing direction, as well as in multi-valve systems, such as used on internal combustion engines.