| 摘要 |
Construction is achieved that is capable of ensuring reliability of a learned value for a position of an adjustment member 24 which becomes the criterion for the transmission gear ratio control of a toroidal continuously variable transmission 4. As conditions for allowing learning of a controller 11 that controls the adjustment member 24, in which the controller 11 adjusts the transmission gear ratio of the toroidal continuously variable transmission 4 to a state in which the rotation speed of an output shaft 14 becomes "0", learns and saves in memory the position of the adjustment member 24 in this state as the position in which the output shaft 14 is stopped while an input shaft 3 is rotated as is, the controller 11 determining whether or not the engine 1 rpm is unstable, and prohibiting execution of this learning control if the engine 1 rpm is determined as being unstable due to the engine 1 rpm fluctuating greater than the normal amount of fluctuation during idling or the like, are included.
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