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. 02, 2007
Filed:
Mar. 25, 2005
Shigeki Takami, Anjo, JP;
Kozo Yamaguchi, Anjo, JP;
Takeshi Inuzuka, Anjo, JP;
Tomohiko Ito, Anjo, JP;
Shigeki Takami, Anjo, JP;
Kozo Yamaguchi, Anjo, JP;
Takeshi Inuzuka, Anjo, JP;
Tomohiko Ito, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A hybrid drive unit includes a three-element planetary gear coupled to two motors, and a reduction planetary gear which is drivingly connected to the three-element planetary gear and switches modes by controlling a clutch and a brake. A three-element direct drive mode is able to be achieved by providing another clutch which couples together any two elements of the reduction planetary gear, and locking up the reduction planetary gear. As a result, motor output is reduced compared with a four-element direct drive mode of related art during high-speed running, and energy recovery efficiency during regeneration can also be improved.