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.

Date of Patent:
Oct. 04, 2016

Filed:

Aug. 06, 2012
Applicants:

Klaus Joos, Walheim, DE;

Werner Hess, Stuttgart, DE;

Andreas Koch, Loechgau, DE;

Ruben Schlueter, Yokohoma, JP;

Holger Rapp, Ditzingen, DE;

Haris Hamedovic, Moeglingen, DE;

Joerg Koenig, Stuttgart, DE;

Harry Friedmann, Vaihingen an der Enz, DE;

Achim Hirchenhein, Trierweiler, DE;

Christoph Heisen, Munich, DE;

Christian Reschke, Leonberg, DE;

Stephanie Wirth, Malmsheim, DE;

Inventors:

Klaus Joos, Walheim, DE;

Werner Hess, Stuttgart, DE;

Andreas Koch, Loechgau, DE;

Ruben Schlueter, Yokohoma, JP;

Holger Rapp, Ditzingen, DE;

Haris Hamedovic, Moeglingen, DE;

Joerg Koenig, Stuttgart, DE;

Harry Friedmann, Vaihingen an der Enz, DE;

Achim Hirchenhein, Trierweiler, DE;

Christoph Heisen, Munich, DE;

Christian Reschke, Leonberg, DE;

Stephanie Wirth, Malmsheim, DE;

Assignee:

ROBERT BOSCH GMBH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/04 (2006.01); F02M 65/00 (2006.01); F02D 41/22 (2006.01); F02D 41/40 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02M 65/001 (2013.01); F02D 41/221 (2013.01); F02D 41/402 (2013.01); G01M 15/042 (2013.01); F02D 41/2438 (2013.01); F02D 41/2458 (2013.01); F02D 2200/0618 (2013.01); F02D 2200/702 (2013.01); Y02T 10/44 (2013.01);
Abstract

A method for assessing an injection behavior of at least one injection valve of an internal combustion engine includes putting the internal combustion engine into a special operating mode defined by control parameters and operating the engine in the special operating mode during a diagnostic time period, at least one operating parameter of the internal combustion engine being determined at least during the diagnostic time period, and at least one quantity characterizing the injection behavior of the at least one injection valve being evaluated at least during a segment of the diagnostic time period and being evaluated on the basis of the at least one operating parameter.


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