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. 03, 2009
Filed:
Apr. 24, 1997
Applicants:
Thomas Hopf, Bensheim, DE;
Ulrich Staufenberg, Diethardt, DE;
Inventors:
Thomas Hopf, Bensheim, DE;
Ulrich Staufenberg, Diethardt, DE;
Assignee:
Mannesmann VDO AG, Frankfurt, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/11 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the determination of combustion misfires in an internal combustion engine having a plurality of cylinders, there being provision, for determining at least two successive compression times and expansion times for at least one cylinder of the internal combustion engine, for the determination of combustion misfires a comparison of the change in the compression times with the change in the expansion times being carried out, and the result of the comparison being a measure of a combustion misfire.