| 摘要 |
PROBLEM TO BE SOLVED: To provide an infinity variable transmission operation state estimation device capable of accurately estimating a change width of a phase at a time of a swing motion of a swing link in response to the rotation of a rotation diameter regulation mechanism.SOLUTION: An infinity variable transmission operation state estimation device comprises: envelope detection units 82a and 82b generating an envelope detection signal of a maximal peak value and an envelope detection signal of a minimal peak value of a phase signal in response to a phase of a swing link, respectively; a differential signal generation unit 83 generating a differential signal between the two detection signals; and a differential correction signal generation unit 84 generating a differential correction signal obtained by correcting the differential signal at least in response to a rotational velocity of an input unit of an infinity variable transmission, and estimates a change width of the phase of the swing link on the basis of the differential correction signal. |
