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:
Apr. 12, 2022
Filed:
Mar. 11, 2021
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Naoya Kaneko, Gotemba, JP;
Hirofumi Kubota, Mishima, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
Abstract
An exhaust gas purification system for an internal combustion engine includes a particulate filter (also referred to as GPF) to collect particulate matter (PM) in exhaust gas, an automatic transmission including a torque converter with a lock-up clutch, and a controller that controls the internal combustion engine to perform fuel cut when the internal combustion engine is decelerating and a temperature correlation value of lubricating oil (ATF) is higher than a determination value, and controls the automatic transmission to engage the lock-up clutch during execution of the fuel cut. The controller is configured to estimate a deposit amount of PM deposited on the GPF, and change the determination value to a smaller value than before the deposit amount exceeds a first deposit amount when the deposit amount exceeds a predetermined first deposit amount.