Shift control device for continuously variable transmission

A shift control device for a continuously variable transmission that has a stepless shift control mode where a gear ratio is automatically steplessly shifted, and a stepped shift control mode where a gear ratio is automatically shifted in a stepped manner, in the same way as with a stepped automatic transmission, the shift control device comprising:

• a selection operation accepting unit that accepts a driver's selecting operation between the stepless shift control mode and the stepped shift control mode;
• a drive assist device that recognizes an environment outside of a vehicle, and calculates required driving force for the vehicle;
• an indicator value acquisition module that acquires an acquired value of an indicator having correlation with an acceleration request by the driver;
• and
• a shift control module that, when the stepped shift control mode has been selected by the selection operation accepting unit and the acquired value is greater than a required value of the indicator calculated from a required driving force calculated by the drive assist device, executes shift control in the stepped shift control mode, and if the acquired value is smaller than the required value, executes shift control in the stepless shift control mode.