Nissan Motor Company Limited

Renault S.a.s. Societe Par Actions Simplifiee

Kazuo Yatabe

Toshikazu Oshidari

Yuusuke Minagawa

Keyvan Kargar

Yasuhiro Yamauchi

Tomoya Imazu

Yves Pichon

Yuuji Gotoh

Joël Poupon

In an electric force transmission device employing two motor generators and a differential device having at least three rotating members and having two degrees of freedom, the first rotating member is coupled to the first motor generator, the second rotating member is coupled to the second motor generator, and the third rotating member is coupled to an output shaft and laid out to be located between the first and the second rotating members on an aligmnent chart. Also, a controller is configured to control the motor generators such that, when the output shaft is driven from its stopped state, before the driving is started, the first and second motor generators are rotated oppositely to each other, while keeping a rotational speed of the output shaft at the stopped state.

Electric force transmission device

The invention is directed to a transmission that controls multiple torque generating elements. The transmission control device utilizes two torque generating elements that are connected to an output element through a differential which has two degrees of freedom and at least three rotating elements. The transmission can use the inertia response of the torque generating elements during a change in a command value of a demanded driving force and improves the ability to increase and decrease the output driving force and the responsiveness of any increase or decrease of the driving force.

Vehicle transmission control device

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

In control apparatus and method for taking failure countermeasure for a hybrid vehicular drive system, on a lever diagram of a planetary gear mechanism, a revolution speed order is a first motor/generator, an engine, the output member, and a second motor/generator, high-brake and low-brake are arranged at one and the other ends of the lever diagram, respectively, with the output member as an intermediate position on the lever diagram, an output abnormality of each of the engine, the first motor/generator, and the second motor/generator which are drive sources is detected, and, with one of the first and second clutching sections clutched, a vehicular run using at least one of the drive sources whose output is detected to be normal is enabled when the drive source output abnormality detecting section detects that the output abnormalities in any one or two of the drive sources occur.

Growing community of inventors

Kanagawa, Japan

Kazuo Yatabe