| 摘要 |
A continuously variable transmission for transmitting torque from an input axle to an output axle comprises a primary planetary gear set having a primary first gear, a primary second gear and a primary carrier, the primary carrier carrying at least one primary planet gear driveably coupling the primary first gear to the primary second gear, wherein one of the primary first gear, the primary second gear and the primary carrier is driveably coupled to the input axle, wherein another one of the primary first gear, the primary second gear and the primary carrier is driveably coupled to the output axle, the transmission further comprising a primary variator for varying the rotational speed of the remaining one of the primary first gear, the primary second gear and the primary carrier, the primary variator comprising a primary worm for restraining said remaining one of the primary first gear, the primary second gear and the primary carrier through one-way interaction with a primary worm wheel, the transmission comprising a continuously variable gearing unit driveably coupling the primary worm to the input axle, the transmission comprising control means for controlling the transmission ratio of the continuously variable gearing unit. |
