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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 10544722 B1

PDFFull Text
Date of Patent:
Jan. 28, 2020

Filed:

Mar. 02, 2017

Virtual sensing system

Applicant:

Watlow Electric Manufacturing Company, St. Louis, MO (US);

Inventors:

James N. Pradun, Lake Geneva, WI (US);

Sanhong Zhang, Ballwin, MO (US);

Jeremy J. Quandt, Winona, MN (US);

David P. Culbertson, Bristol, WI (US);

Magdi Khair, San Antonio, TX (US);

Assignee:

WATLOW ELECTRIC MANUFACTURING COMPANY, St. Louis, MO (US);

Attorney:

Burris Law, PLLC

Primary Examiner:

Hung Q Nguyen

Assistant Examiner:

Mark L Greene

Int. Cl.
CPC ...
F01N 9/00 (2006.01); F01N 11/00 (2006.01); F01N 3/027 (2006.01); G01F 1/68 (2006.01); H05B 1/02 (2006.01); F01N 13/00 (2010.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F01N 3/20 (2006.01); F02D 41/22 (2006.01); G01M 15/05 (2006.01); G07C 5/08 (2006.01); H05B 3/20 (2006.01); H05B 3/40 (2006.01); G01K 7/16 (2006.01); G05D 23/24 (2006.01); G05D 23/30 (2006.01); H05B 3/14 (2006.01); G01F 1/86 (2006.01); H05B 3/18 (2006.01); H05B 3/00 (2006.01); F01N 3/023 (2006.01); F01N 3/10 (2006.01); F01N 3/021 (2006.01); F01N 3/08 (2006.01); H01C 7/02 (2006.01); H01C 7/04 (2006.01);
U.S. Cl.
CPC ...
F01N 9/005 (2013.01); F01N 3/023 (2013.01); F01N 3/027 (2013.01); F01N 3/2006 (2013.01); F01N 3/2013 (2013.01); F01N 9/00 (2013.01); F01N 9/002 (2013.01); F01N 11/002 (2013.01); F01N 11/005 (2013.01); F01N 13/0097 (2014.06); F02D 41/024 (2013.01); F02D 41/1446 (2013.01); F02D 41/1447 (2013.01); F02D 41/22 (2013.01); F02D 41/222 (2013.01); G01F 1/68 (2013.01); G01F 1/86 (2013.01); G01K 7/16 (2013.01); G01M 15/05 (2013.01); G05D 23/2401 (2013.01); G05D 23/30 (2013.01); G07C 5/0808 (2013.01); H05B 1/0227 (2013.01); H05B 1/0244 (2013.01); H05B 3/0042 (2013.01); H05B 3/141 (2013.01); H05B 3/18 (2013.01); H05B 3/20 (2013.01); H05B 3/40 (2013.01); F01N 3/021 (2013.01); F01N 3/0814 (2013.01); F01N 3/103 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 2240/10 (2013.01); F01N 2240/16 (2013.01); F01N 2240/36 (2013.01); F01N 2410/00 (2013.01); F01N 2410/04 (2013.01); F01N 2550/22 (2013.01); F01N 2560/06 (2013.01); F01N 2560/07 (2013.01); F01N 2560/12 (2013.01); F01N 2560/20 (2013.01); F01N 2610/102 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1406 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/1602 (2013.01); F02D 2041/1433 (2013.01); F02D 2041/228 (2013.01); F28F 2200/00 (2013.01); G01K 2205/04 (2013.01); H01C 7/02 (2013.01); H01C 7/04 (2013.01); H05B 2203/019 (2013.01); H05B 2203/022 (2013.01); Y02T 10/26 (2013.01); Y02T 10/47 (2013.01);
Abstract

A control system for a heating system of an exhaust system is provided. The control system includes at least one electric heater disposed within an exhaust fluid flow pathway, and a control device adapted to receive at least one input selected from the group consisting of mass flow rate of an exhaust fluid flow, mass velocity of an exhaust fluid flow, flow temperature upstream of the at least one electric heater, flow temperature downstream of the at least one electric heater, power input to the at least one electric heater, parameters derived from physical characteristics of the heating system, and combinations thereof. The control device is operable to modulate power to the at least one electric heater based on at least one input.

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