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. 28, 2012
Filed:
Jan. 29, 2008
Ryousuke Asaoka, Shizuoka, JP;
Ryousuke Asaoka, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-Shi, JP;
Abstract
Restriction of hunting in the gear ratio of an electronically-controlled continuously variable transmission (ECVT) for a vehicle. A gear ratio change mechanism has a crankshaft as an input shaft, an output shaft and a motor. The motor continuously varies the gear ratio between the crankshaft and the output shaft. An electronic control unit (ECU) performs feedback control of the gear ratio to achieve a target gear ratio. The ECU reduces an output of the motor when a hunting state of the gear ratio is detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile