Patent ID: 8494728

Claim:
A control device for an electronically-controlled continuously variable transmission positioned between a drive source and a driving wheel of a vehicle and capable of continuously varying a transmission ratio, wherein the continuously variable transmission comprises: an input shaft; an output shaft; a primary sheave that includes a primary fixed sheave body capable of rotating together with the input shaft and a primary movable sheave body capable of rotating together with the input shaft and facing the primary fixed sheave body in an axially movable manner with respect to the input shaft, the primary movable sheave body and the primary fixed sheave body forming a primary-side belt groove that extends and widens toward a radially outward direction thereof; a secondary sheave that includes a secondary fixed sheave body capable of rotating together with the output shaft and a secondary movable sheave body capable of rotating together with the output shaft and facing the secondary fixed sheave body in an axially movable manner with respect to the output shaft, the secondary movable sheave body and the secondary fixed sheave body forming a secondary-side belt groove that extends and widens toward a radially outward direction thereof; a belt wound in the primary-side belt groove and the secondary-side belt groove; an actuator that varies a transmission ratio between the primary sheave and the secondary sheave by varying at least one of a width of the primary-side belt groove and a width of the secondary-side belt groove; a belt rotation detection sensor that detects rotation of the belt directly or indirectly; and a control portion that controls the actuator, wherein, after starting the drive source, the control portion starts control of the actuator only after rotation of the belt is detected.