Patent ID: 9670997
Date: 2017-06-06
CPC Classifications: F16H

Claim:
1. A continuously variable transmission comprising: an input shaft connected to a motor and supported by a transmission unit casing member; an output shaft arranged in parallel with the input shaft and supported by the transmission unit casing member; a discoidal input disk that is provided in the input shaft and has an outer circumferential edge arranged close to the output shaft; a discoidal output disk that is provided in the output shaft and has an outer circumferential edge arranged close to the input shaft; a pair of pressing units provided movably along a shaft center connecting line obtained by connecting a shaft center of the input shaft and a shaft center of the output shaft in a disk overlapping area where the input disk and the output disk are overlapped, so that a torque transmission contact portion is formed by clamping and pressing both the disks in a position corresponding to a target shift ratio to elastically deform both the disks; a target slip rate setting unit that is configured to set a target slip rate between the input disk and the output disk in the torque transmission contact portion to a value higher than a torque transmission start slip rate in the torque transmission contact portion; and a control unit that is configured to control a force for clamping and pressing both the disks using the pressing units such that an actual slip rate in the torque transmission contact portion becomes the target slip rate.