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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.:

US 10072552 B1

PDFFull Text
Expired
Date of Patent:
Sep. 11, 2018

Filed:

Jun. 03, 2016

Method and system of testing the proper functioning of a catalyzed particulate filter of an internal combustion engine

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Cristian Taibi, Turin, IT;

Francesco Siano, Givoletto, IT;

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);

Attorney:

Lorenz & Kopf, LLP

Primary Examiner:

Paul West

Int. Cl.
CPC ...
F01N 11/00 (2006.01); G01N 15/06 (2006.01); G01M 15/10 (2006.01); F01N 9/00 (2006.01); F01N 3/035 (2006.01); F01N 13/00 (2010.01); G01N 15/00 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
F01N 11/007 (2013.01); F01N 3/035 (2013.01); F01N 9/002 (2013.01); F01N 11/002 (2013.01); F01N 13/0097 (2014.06); G01M 15/104 (2013.01); G01N 15/0656 (2013.01); F01N 3/103 (2013.01); F01N 2250/02 (2013.01); F01N 2560/025 (2013.01); F01N 2560/026 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1606 (2013.01); F01N 2900/1621 (2013.01); G01N 2015/0046 (2013.01); G01N 2015/0084 (2013.01); Y02T 10/24 (2013.01); Y02T 10/47 (2013.01);
Abstract

A method of testing the proper functioning of a catalyzed particulate filter of an internal combustion engine during regeneration of the catalyzed particulate filter is disclosed. A first value of an oxygen concentration in an exhaust gas upstream of the catalyzed particulate filter and a second value of an oxygen concentration in the exhaust gas downstream of the catalyzed particulate filter is measured during regeneration. The difference between the first value and the second value is calculated and a malfunctioning of the catalyzed particulate filter is indicated when the calculated difference is below a predetermined threshold value thereof.

Find Patent Forward Citations

Taibi, Cristian. (2018). Method and system of testing the proper functioning of a catalyzed particulate filter of an internal combustion engine (U.S. Patent No. 10072552). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10072552

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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