DRIVE ROLLER CONTROL FOR TORIC-DRIVE TRANSMISSIONS

摘要

A toric-drive transmission comprising a drive disk adapted for receiving a drive input from actuation means. A driven disk is opposite the drive disk and adapted for transmitting motion to output means. Drive rollers are between the drive disk and the driven disk. The drive rollers have three rotational degrees of freedom. A first one of the rotational degrees of freedom is for transmitting motion from the drive disk to the driven disk. A second one of the rotational degrees of freedom changes an input-to- output ratio between the drive disk and the driven disk. A third one of the rotational degrees of freedom initiates rotation about the second one of the rotational degrees of freedom. Control means are provided for controlling motion of the drive rollers in the second and third ones of the rotational degrees of freedom.