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:
May. 14, 2019
Filed:
Sep. 18, 2015
Applicant:
Denso Corporation, Kariya, Aichi-pref., JP;
Inventors:
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); G01M 15/10 (2006.01); F01N 11/00 (2006.01); F01N 13/00 (2010.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
G01M 15/102 (2013.01); F01N 11/00 (2013.01); F01N 13/008 (2013.01); F02D 41/1454 (2013.01); F02D 41/1486 (2013.01); F02D 41/28 (2013.01); F02D 41/1495 (2013.01); F02D 2041/1432 (2013.01); F02D 2041/281 (2013.01); F02D 2041/286 (2013.01); F02D 2200/101 (2013.01);
Abstract
A signal processing apparatus for a gas sensor is applied to a gas sensor that is disposed on an exhaust passage of an engine to detect a concentration of a specific component in exhaust gas flowing through the exhaust passage. The signal processing apparatus includes a filtering means that attenuates exhaust pulsation noise included in a detection signal of the gas sensor, and a filter characteristic setting means that variably sets filter characteristics of the filtering means based on engine speed.