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.

Date of Patent:
Feb. 28, 2006

Filed:

Jul. 23, 2002
Applicants:

Toshikazu Oshidari, Yokosuka, JP;

Masaki Nakano, Yokohama, JP;

Keyvan Kargar, Paris, FR;

Joel Poupon, Paris, FR;

Inventors:

Toshikazu Oshidari, Yokosuka, JP;

Masaki Nakano, Yokohama, JP;

Keyvan Kargar, Paris, FR;

Joel Poupon, Paris, FR;

Assignees:

Nissan Motor Co., Ltd., Yokohama, JP;

Renault SA, Boulogne Bilancourt, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01);
U.S. Cl.
CPC ...
Abstract

The drivetrain includes a differential mechanism having four or more input/output elements and having two degrees of freedom. The input In from an engine, the output Out to a drive shaft, and two motor-generators MGi and MGo are assigned to the elements, and one of the elements other than the element to which the output assigned is provided with brakes B. By braking the element other than the output with the brakes, a large reduction ratio can be achieved, so startability can be improved without enlarging the capacities of the motor-generators.


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