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:
Oct. 21, 2014
Filed:
Nov. 04, 2010
Akiko Nishimine, Toyota, JP;
Koji Hayashi, Aichi-gun, JP;
Takeshi Kanayama, Toyota, JP;
Tetsuo Hori, Toyota, JP;
Tomoyuki Maruyama, Tajimi, JP;
Takeshi Miyagawa, Toyokawa, JP;
Ryoki Ii, Toyota, JP;
Tomoaki Furukawa, Toyota, JP;
Norihiro Yamamura, Miyoshi, JP;
Akihiro Sato, Nagoya, JP;
Akiko Nishimine, Toyota, JP;
Koji Hayashi, Aichi-gun, JP;
Takeshi Kanayama, Toyota, JP;
Tetsuo Hori, Toyota, JP;
Tomoyuki Maruyama, Tajimi, JP;
Takeshi Miyagawa, Toyokawa, JP;
Ryoki Ii, Toyota, JP;
Tomoaki Furukawa, Toyota, JP;
Norihiro Yamamura, Miyoshi, JP;
Akihiro Sato, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A hybrid drive system configured to selectively establish one of a first drive mode in which a first motor/generator MGis operated with a drive force of an engine, to generate an electric energy and in which a vehicle drive force is generated primarily by a second motor/generator MG, and a second drive mode in which the vehicle drive force is generated by the engine, and at least one of the first motor/generator MGand second motor/generator MGis operated to generate an assisting vehicle drive force, as needed, and further configured such that an amount of a working oil to be supplied to the first motor/generator MGis larger in the first drive mode than in the second drive mode, permitting sufficient cooling of the electric motor depending upon a selected one of the vehicle drive modes.