Patent ID: 8666616

Claim:
A continuously variable transmission mounted in a vehicle to shift and transmit output rotation of a driving source, comprising: a variator which changes a speed ratio continuously; a stepped sub-transmission mechanism provided in series with the variator; and a transmission control unit configured to select either one of: an auto mode in which a final through speed ratio as a target value of an overall speed ratio of the variator and the sub-transmission mechanism is set based on a driving condition of the vehicle and in which the variator and the sub-transmission mechanism are controlled to realize the final through speed ratio, or a manual mode in which a gear position of the continuously variable transmission is selected based on an input operation from a driver, the final through speed ratio is set based on the selected gear position, and the variator and the sub-transmission mechanism are controlled to realize the final through speed ratio, wherein the transmission control unit is configured to: reduce a hydraulic pressure of a release-side frictional engagement element of the sub-transmission mechanism, which release-side frictional engagement element is to be released, and reduce a reduction amount of the hydraulic pressure of the release-side engagement element as an input torque to the sub-transmission mechanism increases at a time of starting a shift when the manual mode is selected, the input torque is positive, and the sub-transmission mechanism is to be shifted down.