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:
Jan. 19, 1999
Filed:
Mar. 17, 1997
Applicant:
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731173 ; 701111 ;
Abstract
The invention is directed to a method for detecting combustion misfires in a multi-cylinder internal combustion engine, the method comprising the steps of: determining the rough-running values for the engine individual to the cylinders; determining a quantity for the level of a subset of the rough-running values; forming a reference value by logically coupling the quantity with an offset; and, comparing the rough-running values to the reference value and evaluating a passthrough of the reference value as a misfire.