Jatco Corporation

Nissan Motor Company Limited

Hiromu Soya

Yuji Takahashi

Hironori Miyaishi

Yusuke Nakano

Tomohiro Utagawa

Seiichirou Takahashi

Masanori Ishikawa

Makoto Oguri

Mitsuhiro Kishino

Jumpei Hayakawa

Hisashi Kudou

Masayuki Ashizawa

Masahiro Kusuda

Shou Okutani

A continuously variable transmission includes: a first pulley and a second pulley each including a fixed pulley and a movable pulley; and an endless member wound around the first pulley and the second pulley, wherein the continuously variable transmission continuously changes a speed ratio by controlling a thrust of the movable pulley with a hydraulic pressure, the thrust of the movable pulley is made smaller as a rotation speed of the first pulley decreases, and when the rotation speed of the first pulley is lower than a predetermined rotation speed, the thrust of the movable pulley in a case where the speed ratio is on a Low side of the predetermined speed ratio is not made smaller than the thrust of the movable pulley in a case where the speed ratio is on a High side of the predetermined speed ratio.

Continuously variable transmission, method for controlling continuously variable transmission, and non-transitory computer-readable medium

A failure detect device detects the presence of a failure in a peripheral member of a rotary shaft by analyzing a vibration generated in a device provided with the rotary shaft when the rotary shaft is rotated. A vibration detection unit detects the vibration of the device, and a rotation speed detection unit detects a rotation speed of the rotary shaft. An analysis unit calculates a frequency spectrum of the vibration of the device and determines an actually measured vibration level at each vibration order by dividing a frequency component of the calculated frequency spectrum by the rotation speed of the rotary shaft. A detection unit detects the presence of a failure in the peripheral member on the basis of the actually measured vibration level at each vibration order.

Failure detect device and failure detect method

An oil pump driving apparatus including a rotation shaft in driving connection with a torque converter, a drive sprocket rotatable about the rotation shaft and adapted to be connected with a driven sprocket disposed on the oil pump via the chain, a first sleeve disposed on a radial outside of the rotation shaft so as to be rotatable together with the torque converter, the first sleeve being engaged with the drive sprocket, a second sleeve fixedly disposed on a radial inside of the first sleeve, a first bearing supporting the first sleeve so as to be rotatable relative to the second sleeve, and a second bearing supporting the drive sprocket so as to be rotatable relative to the second sleeve.

Apparatus for driving an oil pump for automatic transmission

Growing community of inventors

Hiratsuka, Japan

Hiromu Soya