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:
Dec. 17, 2013

Filed:

Aug. 30, 2010
Applicants:

Sam George, Painted Post, NY (US);

Suhao He, Painted Post, NY (US);

Achim Karl-erich Heibel, Corning, NY (US);

Inventors:

Sam George, Painted Post, NY (US);

Suhao He, Painted Post, NY (US);

Achim Karl-Erich Heibel, Corning, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/023 (2006.01); F02D 28/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of controlling the operation of a particulate filter in an exhaust gas after-treatment system may comprise calculating a ratio of particulate loading rate to filter regeneration rate using a mass-based soot load estimation scheme and comparing the ratio of particulate loading rate to filter regeneration rate to a predetermined threshold value. The method may further comprise controlling operating conditions of the particulate filter to maintain the ratio of particulate loading rate to filter regeneration rate at a value above the predetermined threshold value.


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