| 摘要 |
A toroidal type continuously variable transmission includes a pair of discs (5, 10) in opposed relation, and a rotary element (17) interposed in a toroidal clearance (S) defined between these discs (5, 10). Torque is transmitted between the pair of discs (5, 10) via the rotary element (17). Sensing the velocity of the rotary element (17) permits the determination of, for example, how much the rotary element (17) slips on the discs (5, 10). This assists the prevention of heat-up of the rotary element (17) and also provides an optimal traction between the rotary element (17) and the discs (5, 10).
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