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:
Jul. 23, 2024

Filed:

Feb. 11, 2021
Applicant:

Vitesco Technologies Gmbh, Regensburg, DE;

Inventor:

Hong Zhang, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 9/00 (2006.01); F01N 3/02 (2006.01); F01N 3/035 (2006.01); F01N 11/00 (2006.01); F02D 41/02 (2006.01);
U.S. Cl.
CPC ...
F01N 9/002 (2013.01); F01N 3/02 (2013.01); F01N 3/035 (2013.01); F01N 11/00 (2013.01); F01N 2550/04 (2013.01); F01N 2560/026 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/1606 (2013.01); F01N 2900/1616 (2013.01); F02D 41/029 (2013.01);
Abstract

Various embodiments include a method for regenerating a coated particulate filter arranged in an exhaust-gas duct of a motor vehicle. The method may include: detecting a need for particulate filter regeneration; determining a first diagnosis value before initiating particulate filter regeneration; after determining the first diagnosis value, carrying out particulate filter regeneration; determining a second diagnosis value after particulate filter regeneration; determining a difference between the first determined diagnosis value and the second determined diagnosis value; comparing the determined difference with a threshold value; and identifying a particulate filter defect if the determined difference exceeds the threshold value.


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