Jatco Corporation

Nissan Motor Company Limited

Masashi Suwabe

Takuichiro Inoue

Tetsuya Izumi

Masayuki Miyazono

Kunihiro Takahashi

Yuji Okamoto

Makoto Komatsu

A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio when the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The transmission controller shifts the variator from the mechanical Low speed ratio to a High side when a sub-transmission mechanism is downshifted during controlling a speed ratio of the variator at the mechanical Low speed ratio.

Continuously variable transmission and method for controlling the same

A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio during the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The mechanical Low speed ratio is a speed ratio where a groove width of the primary pulley has a maximum value possible to be employed in structure of the primary pulley.

Growing community of inventors

Kawasaki, Japan

Masashi Suwabe