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:
Oct. 12, 2021
Filed:
Dec. 24, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F01N 11/00 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0295 (2013.01); F01N 3/0864 (2013.01); F01N 11/007 (2013.01); F01N 2570/16 (2013.01); F01N 2900/1624 (2013.01);
Abstract
An exhaust purification system of an internal combustion engine includes a catalyst arranged in an exhaust passage of the internal combustion engine and able to store oxygen, a storage amount calculating part configured to calculate an oxygen storage amount of the catalyst, a poisoning amount calculating part configured to calculate a poisoning amount of the catalyst, and an oxygen amount control part configured to control an amount of oxygen supplied to the catalyst based on the oxygen storage amount and the poisoning amount.