SPEED CHANGE CONTROL DEVICE OF CONTINUOUSLY VARIABLE TRANSMISSION

PROBLEM TO BE SOLVED: To provide a speed change control device of a continuously variable transmission that can reduce the uncomfortable feeling of a driver to the execution timing of step-down.SOLUTION: In this speed change control device, an accelerator opening Asft for speed change control is set by using an actual accelerator opening A, and the continuously variable transmission is controlled on the basis of the accelerator opening Asft for speed change control. Then, the accelerator opening Asft for speed change control is maintained until the actual accelerator opening A reaches a down-line (speed change threshold) D, and every time the actual accelerator opening A is raised and reaches the down-line D, the accelerator opening Asft for the speed control is updated to a high-opening side stepwise, and the down-line D is raised to a prescribe amount Da. Then, a vehicle speed change amount V from the time of the updating to a present time t is acquired, and the down-line D is further raised as the vehicle speed change amount V is large (that is, the acceleration intention of the driver is small).