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:
Jul. 10, 2012
Filed:
Aug. 11, 2008
Applicants:
Hiroshi Sawada, Gotenba, JP;
Shinichiro Imamura, Chiryu, JP;
Inventors:
Hiroshi Sawada, Gotenba, JP;
Shinichiro Imamura, Chiryu, JP;
Assignees:
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Denso Corporation, Aichi-Pref, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 17/00 (2006.01); G06F 7/00 (2006.01); G06F 19/00 (2011.01);
U.S. Cl.
CPC ...
Abstract
The NOx sensor malfunction diagnostic device includes a control section. The control section performs the supplying of an excess amount of reducing agent, which is more than an amount required to reduce adsorbed NOx in a NOx reduction catalyst when a predetermined amount of NOx has been adsorbed in the NOx catalyst, and detects malfunctions of the NOx sensor based on NOx sensor output signal when the excess amount of reduction agent is supplied.