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. 23, 2024
Filed:
Jun. 06, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Toru Yaeo, Anjo, JP;
Yoshifumi Matsuda, Toyota, JP;
Masashi Hakariya, Nisshin, JP;
Atsushi Morikawa, Toyota, JP;
Ikuo Hoda, Nagoya, JP;
Noriyasu Adachi, Numazu, JP;
Masanori Hayashi, Toyota, JP;
Kenji Igawa, Shizuoka-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A controller for an internal combustion engine is configured to execute a determination process that determines that a deviation between a first change amount and a second change amount during a fuel cutoff operation is less than or equal to a threshold, and an anomaly diagnosing process that determines that an exhaust purification device is in a detached state when the determination process determines that the deviation is less than or equal to the threshold. The first change amount and the second change amount are change amounts per unit time of the temperature of exhaust gas on the upstream side and the downstream side of the exhaust purification device, respectively. The controller is configured to interrupt the determination process when the upstream-side temperature increases within a determination period.