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:
Feb. 11, 2025
Filed:
Aug. 04, 2023
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Yoh Aramaki, Shizuoka, JP;
Hisatoshi Kinoshita, Shizuoka, JP;
Nobuyuki Kawashima, Shizuoka, JP;
Ryota Nakashima, Shizuoka, JP;
Satoshi Shiokawa, Shizuoka, JP;
Ryo Tomii, Shizuoka, JP;
Yuta Shimizu, Shizuoka, JP;
Haruhiko Fujita, Shizuoka, JP;
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata, JP;
Abstract
A straddled vehicle, including: an engine, which includes a combustion chamber; a three-way catalyst, which is configured to purify exhaust gas exhausted from the combustion chamber; an upstream oxygen sensor, which is provided upstream of the three-way catalyst in a flow direction of the exhaust gas, and is configured to detect an oxygen concentration in the exhaust gas; a downstream oxygen sensor, which is provided downstream of the three-way catalyst in the flow direction of the exhaust gas, and is configured to detect the oxygen concentration in the exhaust gas; and a controller, which includes a processor, and a non-transitory storage medium containing program instructions, execution of which by the processor causes the controller to execute a detachment determination process of determining whether the three-way catalyst is detached at least based on a signal input as a signal of the downstream oxygen sensor.