In a continuously variable transmission apparatus, by adjusting the
transmission ratio of a toroidal continuously variable transmission, an
output shaft can be stopped while an input shaft is left rotating in one
direction by a drive source. And, when, while the vehicle is running, a
select lever is operated to a select position in the reverse direction to
the vehicle running direction, in a state where a clutch device is
connected, the speed ratio of the continuously variable transmission
apparatus is changed from a value corresponding to the vehicle running
state to a value 0 capable of realizing the above-mentioned stopping
state along a preset condition.