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:
Sep. 25, 2018
Filed:
May. 22, 2017
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;
Haruyoshi Hino, Iwata, JP;
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata-Shi, Shizuoka, JP;
Abstract
A drive system, mountable onto a vehicle including a detachable rotational drive mechanism, for driving the rotational drive mechanism in accordance with a torque requirement. The drive system includes an engine that outputs first rotational power, and a generator that includes a rotor for receiving the first rotational power, a stator including a stator core with a winding wound thereon, a magnetic circuit for the winding passing through the stator core, and a supply current adjustment device for adjusting magnetic resistance of the magnetic circuit for the winding, to thereby change an inductance of the winding to adjust an output current of the generator. The drive system further includes a motor driven by the outputted current of the generator to output second rotational power to the rotational drive mechanism, and a control device configured to control both the engine and the supply current adjustment device, in accordance with the torque requirement.