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:
Dec. 28, 2004
Filed:
Dec. 20, 2002
Applicant:
Inventors:
Scott Sebastian, Three Rivers, MI (US);
William Wittliff, Gobles, MI (US);
Assignee:
SPX Corporation, Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 1/900 ;
U.S. Cl.
CPC ...
G01M 1/900 ;
Abstract
A fill-in apparatus for an engine that injects a pseudo cylinder signal when an ignition event is missing from a cylinder. The pseudo cylinder signal is injected if no ignition event occurs at an end of a time period designated for that cylinder. An algorithm can be used to determine an engine period, determine a cylinder time, determine a predictive window, and analyze the cylinder ignition event to see if the fill-in signal is needed.