Nissan Motor Company Limited

Renault S.a.s. Societe Par Actions Simplifiee

Yuuji Gotoh

Toshikazu Oshidari

Yasuhiro Yamauchi

Keyvan Kargar

Kazuo Yatabe

Joël Poupon

In a hybrid transmission, input and output side motor/generators (MG, MG) and input and output portions (In, Out) are coupled to two sets of the differential units (G, G) in such a manner that, under a selection of a first predetermined gear ratio, in a revolution speed order, the input side motor/generator (MG), the input portion (In) from a prime mover (engine), the output portion (Out) toward a vehicular drive system, and the output side motor/generator (MG) are coupled to the respective revolvable elements of the two sets of the differential units (G, G) and the output side motor/generator is coupled to any one of the revolvable elements of the two sets of the differential units including those revolvable elements thereof which do not contribute to a revolution of the output portion.

Hybrid transmission

A first helical gear ( ) is supported by a first rotation shaft ( ), and a second helical gear ( ) is supported by a second rotation shaft ( ). A rotation body ( ) comprising a third helical gear ( ) which meshes with the first helical gear ( ), and a fourth helical gear ( ) which meshes with the second helical gear ( ), is supported by an intermediate shaft ( ). The rotation body ( ) is further supported by a thrust bearing ( ) in a direction along the intermediate shaft ( ). The average radius R of the thrust bearing ( ) is determined according to the direction of the thrust load acting on the third helical gear ( ), the direction of the thrust load acting on the fourth helical gear ( ), and an angle &thgr;2 subtended by the application point of these thrust loads.

Torque transmission device

Growing community of inventors

Yokohama, Japan

Yuuji Gotoh