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. 09, 2024

Filed:

Aug. 22, 2023
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Haifeng Shi, Wuhan, CN;

Yang Z. Zhou, Wuhan, CN;

Chengxiu Huang, Hubei, CN;

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F01N 3/20 (2006.01); F01N 9/00 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F01N 11/002 (2013.01); F01N 3/2066 (2013.01); F02D 41/0235 (2013.01); F01N 9/005 (2013.01); F01N 9/007 (2013.01); F01N 11/007 (2013.01); F01N 2550/02 (2013.01); F01N 2550/03 (2013.01); F01N 2550/20 (2013.01); F01N 2560/02 (2013.01); F01N 2610/1453 (2013.01); F01N 2900/04 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/06 (2013.01); F02D 41/1495 (2013.01); F02D 41/222 (2013.01); F02D 2200/08 (2013.01);
Abstract

Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.


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