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:
Aug. 06, 2002
Filed:
Oct. 02, 2000
Winfried Langer, Illingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention is directed to a method for determining causes of faults in the formation of the air/fuel mixture for an internal combustion engine. First, different operating parameters of the engine are detected and at least three load signals are formed on the basis of at least somewhat different operating parameters. The three load signals represent respective air quantities which flow into the engine. Different pairs of two load signals in each pair are formed and deviations of the each two load signals of a pair with respect to each other are determined for different pairs. Different causes are allocated to different combinations of pairs wherein deviations were determined.