| 摘要 |
PURPOSE: To balance a differential function and speed by furnishing a plural number of continuously variable belt drive devices on a connecting means, making at least one of sheaves furnished on each pulley movable in the axial direction and moving the sheaves by an electronic control system. CONSTITUTION: A torque distributor sub-assembly 15 is furnished with an input shaft 42 to receive output torque from an output shaft 44 of a torque transmission assembly, front and rear part output shafts 80, 210 are respectively and continuously connected to the input shaft 42 by a variable belt drive device 75, a driving pulley 76 and a driven pulley 78 are relatively movable in the axial direction, and a pair of sheaves 110, 112 devised to change effective pulley diameters of them is frunished. An electronic control system 170 is provided to move the sheave 110 free to move against the sheave 112 fixed in correspondence with each of the belt drive devices 75, a pair of adjustment mechanisms 172 is controlled, and the sheave 110 is moved against the sheave 112 to cooperate with the continuously variable belt drive device 75. |
