Nsk Corporation

Nissan Motor Company Limited

Mitsuru Oike

Shin Yamamoto

Osamu Sato

Shunsuke Suzuki

Daisuke Gunji

Yasuyuki Matsuda

Masahiro Kusano

Cyou Kyo

Ryuho Morita

Takahiro Sushi

A suspension device has an upper shell having a stepped section around an inner circumferential surface; a lower shell; a ball screw shaft rotatably supported by the upper shell; a bearing unit arranged between a part of the ball screw shaft and the upper shell, and having an outer side part in a radial direction including a side surface that comes in contact with a side surface on the other side in the axial direction of the stepped section; a ball nut screwed on the ball screw shaft; an inner tube joined to the lower shell and the ball nut; an electric motor; and a coil spring, and a circumscribed circle diameter of the ball nut and the inner tube is less than an inner diameter dimension of the stepped section.

Suspension device and assembly method therefor

An electric vehicle drive device includes: a first motor; a second motor; a transmission mechanism coupled to the first motor and the second motor; and a control unit configured to control operation of the first motor and the second motor based on a drive signal. The transmission mechanism includes: a sun gear shaft coupled to the first motor; a first planetary gear mechanism; a second planetary gear mechanism; and a one-way clutch configured to restrict a rotation direction of a first carrier to a predetermined positive rotation direction. The drive signal includes gear change information indicating a first state in which the second motor is controlled based on torque or a second state in which the second motor is controlled based on rotation speed, and throttle information indicating an acceleration of rotation speed of a wheel.

Electric vehicle drive device

A system for automatically swinging a steering wheel to a withdrawn position to make it easy for the driver to get on and off a vehicle is made more reliable by employing a park position sensor such as a detent switch for producing a park signal only when a shift lever of an automatic transmission is in a park position. A control unit produces an automatic withdraw command signal to drive a motor to withdraw the steering wheel in response to a driver's operation such as an operation to open a driver's door or an operation to turn an ignition key to a lock position. The control unit produces the automatic withdraw command signal only when the shift lever is in the park position.

Steering wheel posture control system

Growing community of inventors

Kanagawa, Japan

Mitsuru Oike