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. 31, 2023
Filed:
Dec. 03, 2021
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F01N 3/021 (2006.01); F02D 41/02 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2006 (2013.01); F01N 3/021 (2013.01); F02D 41/008 (2013.01); F02D 41/024 (2013.01); F02D 41/1454 (2013.01); F02D 2200/0804 (2013.01);
Abstract
When a temperature increasing process is performed, a CPU sets a target temperature of a catalyst to be lower when a coolant temperature is low than when the coolant temperature is high. The CPU decreases an increase coefficient of fuel in the temperature increasing process when a value obtained by subtracting an estimated value of a temperature of the catalyst from the target temperature is equal to or less than a first prescribed value.