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:
Sep. 15, 2020
Filed:
Jun. 27, 2018
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01); F01N 11/00 (2006.01); F01N 3/021 (2006.01);
U.S. Cl.
CPC ...
F01N 11/002 (2013.01); F01N 3/021 (2013.01); F01N 2550/04 (2013.01); F01N 2550/24 (2013.01); F01N 2560/08 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1406 (2013.01);
Abstract
In a method and a device for diagnosing a differential pressure sensor of a particle filter of an internal combustion engine, where the differential pressure sensor is connected via a first pressure line to an exhaust-gas system upstream from the particle filter and via a second pressure line to the exhaust-gas system downstream from the particle filter and upstream from a rear muffler, a diagnosis of the first or second pressure lines is performed by evaluating a comparison of a differential pressure signal from a differential pressure sensor with modeled pressure values.