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:
Jun. 22, 2021

Filed:

Sep. 06, 2019
Applicant:

Volkswagen Aktiengesellschaft, Wolfsburg, DE;

Inventors:

Sebastian Heinken, Braunschweig, DE;

Christoph Nee, Wolfsburg, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 27/00 (2006.01); G01M 15/10 (2006.01); F01N 9/00 (2006.01); B01D 46/00 (2006.01);
U.S. Cl.
CPC ...
G01L 27/007 (2013.01); B01D 46/0086 (2013.01); F01N 9/00 (2013.01); G01M 15/106 (2013.01); B01D 2279/30 (2013.01); F01N 2900/1606 (2013.01);
Abstract

A method for checking the plausibility of a pressure sensor that, during the measurement of a differential pressure, records measured values, whereby the measured values from the pressure sensor are compared to reference values for the differential pressure calculated on the basis of a model; whereby in order to determine the plausibility, at least one deviation of the measured values from the reference values and a difference between a first slope of the changing measured values and a second slope of the changing reference values over the curve of the measured values are taken into account.


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