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:
Jan. 31, 2023
Filed:
Sep. 21, 2021
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F02B 75/18 (2006.01); F01N 3/021 (2006.01); F02D 41/40 (2006.01); F01N 3/20 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/024 (2013.01); F01N 3/021 (2013.01); F01N 3/2006 (2013.01); F02B 75/18 (2013.01); F02D 41/0087 (2013.01); F02D 41/40 (2013.01); F01N 2430/02 (2013.01);
Abstract
When a performance flag of a temperature raising process becomes '1', a CPU increases an injection amount for first, third and fourth cylinders from a base injection amount for making an air-fuel ratio of an air-fuel mixture equal to a theoretical air-fuel ratio, by an increase amount, and stops combustion control in a second cylinder. The CPU gradually increases a ratio of the increase amount to the base injection amount, at the start of the temperature raising process.