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.:
Date of Patent:
Feb. 15, 2022
Filed:
Dec. 22, 2016
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Yusuke Kawamoto, Kariya, JP;
Toru Katafuchi, Kariya, JP;
Takehito Kimata, Kariya, JP;
Ryozo Kayama, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/406 (2006.01); G01N 27/416 (2006.01); G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4065 (2013.01); G01N 27/4074 (2013.01); G01N 27/4075 (2013.01); G01N 27/4163 (2013.01);
Abstract
An SCU as a control device for the gas sensor (first and second NOx sensors) includes an applied voltage switching unit for switching an applied voltage of a pump cell when a deterioration detecting function is performed, and a deterioration rate calculation unit for calculating a deterioration rate of a sensor cell based on a slope during a transient change in an output of the sensor cell according to a switching of the applied voltage by the applied voltage switching unit.