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:
Mar. 26, 2024
Filed:
Oct. 11, 2022
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventor:
Akihiro Katayama, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02B 37/18 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 20/15 (2016.01); F01N 3/20 (2006.01); F01N 13/00 (2010.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02B 37/183 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/15 (2016.01); F01N 3/20 (2013.01); F01N 13/008 (2013.01); F02D 41/0007 (2013.01); F02D 41/1454 (2013.01); F02D 41/221 (2013.01);
Abstract
An ECM executes a catalyst early activation control at the cold start of an engine such that the activation of a catalyzer is promoted by opening a WGV. Further, the ECM performs a diagnosis process of diagnosing whether or not the WGV is stuck closed, based on the amplitude of the output fluctuation in an air-fuel-ratio sensor during execution of the catalyst early activation control.