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:
May. 26, 2020

Filed:

Nov. 01, 2017
Applicant:

Ngk Spark Plug Co., Ltd., Nagoya, JP;

Inventor:

Yoshihiro Nakano, Komaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 9/00 (2006.01); F01N 3/00 (2006.01); G01N 27/40 (2006.01); G01N 27/419 (2006.01); F01N 13/00 (2010.01); G01N 27/407 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
G01N 27/419 (2013.01); F01N 3/206 (2013.01); F01N 3/208 (2013.01); F01N 9/00 (2013.01); F01N 13/008 (2013.01); G01N 27/4074 (2013.01); B01D 53/9495 (2013.01); F01N 2560/021 (2013.01); F01N 2900/0416 (2013.01); Y02T 10/47 (2013.01);
Abstract

A sensor controller includes a signal reception determination section and a use suspension section. The signal reception determination section determines whether or not the sensor controller has received a specific state signal that indicates a specific state in which exhaust gas may contain a specific gas that differs from ammonia and reacts with an ammonia sensor. When the signal reception determination section determines that the sensor controller has received the specific state signal, the use suspension section suspends at least temporarily use of a detection result detected by the ammonia sensor after the determination. Specifically, upon reception of the specific state signal, the sensor controller suspends at least temporarily the use of the detection result detected by the ammonia sensor after the reception of the specific state signal.


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