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:
Jul. 20, 2004
Filed:
Feb. 19, 2003
Applicant:
Inventors:
Jing Sun, Bloomfield, MI (US);
Julia Helen Buckland, Dearborn, MI (US);
Diana Dawn Brehob, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 3/100 ; F02D 4/122 ;
U.S. Cl.
CPC ...
F02B 3/100 ; F02D 4/122 ;
Abstract
A method for detecting improper operation of a charge motion control device (CMC) based on exhaust temperature is disclosed. It has been found that when the charge motion control device is switched between two positions, the exhaust temperature changes by as much as 100 degrees C. The expected exhaust temperature, based on commanded charge motion control device position and current engine operating condition, and the measured exhaust temperature are compared to determine whether the charge motion control device has failed to attain the desired position.