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:
Apr. 16, 1996
Filed:
Jan. 19, 1995
Applicant:
Inventors:
Karl-Heinz Kugler, Vaihingen, DE;
Karlheinz Riedel, Vaihingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123481 ; 123630 ; 324388 ; 324399 ;
Abstract
An ignition system is provided for internal combustion engines for detecting combustion misfirings. The ignition system of an internal combustion engine detects the spark voltage transformed on to the primary side of a double spark coil for evaluating the ignition spark duration and/or the ignition spark voltage so as to allow a comparison to be made with limit values for a correct ignition. The limit values for a correct ignition are determined from the measured variables of a reference ignition. The reference ignition is the ignition which is triggered by the energy potential of the same ignition coil.