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:
Mar. 03, 2020
Filed:
Jul. 07, 2016
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Achim Hirchenhein, Bietigheim-Bissingen, DE;
Alexander Schenck Zu Schweinsberg, Moeglingen, DE;
Klaus Joos, Walheim, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02D 41/38 (2006.01); F02M 65/00 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02D 41/221 (2013.01); F02D 41/3809 (2013.01); F02M 65/00 (2013.01); F02D 41/2467 (2013.01); F02D 2041/224 (2013.01); F02D 2041/228 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0614 (2013.01); F02M 2200/06 (2013.01); F02M 2200/247 (2013.01);
Abstract
A method for recognizing a state change of a fuel injector of an internal combustion engine, in which fuel from a high-pressure accumulator is injected into a combustion chamber with the aid of the fuel injector. A value that is representative of a static flow rate of fuel through the fuel injector is ascertained. A state change of the fuel injector is deduced when the representative value differs from a comparative value by more than a first threshold value.