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. 26, 2016

Filed:

Jan. 17, 2013
Applicant:

Filter Sensing Technologies, Inc., Cambridge, MA (US);

Inventors:

Leslie Bromberg, Sharon, MA (US);

Alexander Sappok, Cambridge, MA (US);

Peter Koert, Boston, MA (US);

Assignee:

CTS Corporation, Elkhart, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/32 (2006.01); B01D 46/44 (2006.01); F01N 3/025 (2006.01); F01N 3/035 (2006.01); F01N 3/10 (2006.01); F01N 9/00 (2006.01); F01N 13/00 (2010.01);
U.S. Cl.
CPC ...
B01D 46/44 (2013.01); F01N 3/025 (2013.01); F01N 3/035 (2013.01); F01N 3/106 (2013.01); F01N 9/002 (2013.01); F01N 13/009 (2014.06); F01N 2370/22 (2013.01); F01N 2560/05 (2013.01); F01N 2560/06 (2013.01); F01N 2560/12 (2013.01); F01N 2560/14 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/1606 (2013.01); Y02T 10/47 (2013.01);
Abstract

A particulate filter control system and method for controlling the same is disclosed. The particulate filter load monitoring system may transmit radio frequency signals through the resonant cavity and filter medium across a frequency range sufficient to generate more than one resonant mode. The system may contain additional sensors for monitoring additional exhaust characteristics and parameters. Further, a control unit may be configured to determine the amount of material accumulated in the particulate filter, detect failures and malfunctions of the exhaust after-treatment system and its associated components, and initiate an action based on the amount of material accumulated in the particulate filter, the determination of a system failure or malfunction, or input from one or more exhaust sensors.


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