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:
Nov. 24, 1998
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Donald J Remboski, Dearborn, MI (US);
Steven L Plee, Brighton, MI (US);
Marvin L Lynch, Detroit, MI (US);
Michael A McClish, Northville, MI (US);
Susan K Sonday, Dearborn, MI (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731173 ;
Abstract
A misfire detection method and apparatus includes measurement of combustion induced torque in an internal combustion engine and provision of time-ordered first, second, and third acceleration data samples dependent on the torque. A misfire is indicated when a magnitude of the second acceleration data sample has a magnitude less than a misfire threshold, and less than a magnitude of both the first and third acceleration data samples.