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. 24, 2023
Filed:
Dec. 06, 2021
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Shinichi Nakagoshi, Miyoshi, JP;
Shinji Yoshioka, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
An engine control device is configured to perform an air-fuel ratio main feedback process based on an output of a front air-fuel ratio sensor, an air-fuel ratio sub feedback process of alternately switching a target air-fuel ratio between a rich side target air-fuel ratio and a lean side target air-fuel ratio based on an output of a rear air-fuel ratio sensor, and a catalyst air-fuel ratio correction process of, when an opening degree of a wastegate valve is large, correcting the target air-fuel ratio to be the air-fuel ratio on the rich side with respect to the air-fuel ratio when the opening degree is small.