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. 15, 2003
Filed:
Oct. 15, 1998
Applicant:
Inventors:
John Michael Kacewicz, Riverview, MI (US);
Arthur Joseph Varady, Chelsea, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 1/500 ;
U.S. Cl.
CPC ...
G01M 1/500 ;
Abstract
An engine misfire detection circuit and method for operation includes a reference window generator that generates a misfire window reference signal having a misfire sampling window. A misfire window calculator is coupled to a condition variable input and the reference window generator. The condition varying input may be a filter input or an input from various engine sensors. The misfire window calculator calculates an offset for adjusting the sampling window in response to the condition variable input.