Continuously variable transmission, method for controlling continuously variable transmission, and non-transitory computer-readable medium

A continuously variable transmission to be mounted on a vehicle, wherein

• when an accelerator opening is decreased while the vehicle is traveling,
• an upshift is performed according to the accelerator opening until a predetermined opening is reached,
• when the accelerator opening is smaller than the predetermined opening, the upshift is further performed from a speed ratio when the accelerator opening is the predetermined opening so as to fix the speed ratio to be higher than the speed ratio when the accelerator opening is the predetermined opening, and
• the upshift is further performed thereafter from the fixed speed ratio according to the accelerator opening.

A method for controlling a continuously variable transmission mounted on a vehicle, the method comprising:

• when an accelerator opening is decreased while the vehicle is traveling,
• performing an upshift according to the accelerator opening until a predetermined opening is reached;
• further performing, when the accelerator opening is smaller than the predetermined opening, the upshift from a speed ratio when the accelerator opening is the predetermined opening so as to fix the speed ratio to be higher than the speed ratio when the accelerator opening is the predetermined opening;
• and
• further performing the upshift thereafter from the fixed speed ratio according to the accelerator opening.

A non-transitory computer-readable medium storing a program executable by a computer of a continuously variable transmission mounted on a vehicle, wherein

• the program causes the computer to execute instructions for:
• when an accelerator opening is decreased while the vehicle is traveling,
• performing an upshift according to the accelerator opening until a predetermined opening is reached;
• further performing, when the accelerator opening is smaller than the predetermined opening, the upshift from a speed ratio when the accelerator opening is the predetermined opening so as to fix the speed ratio to be higher than the speed ratio when the accelerator opening is the predetermined opening;
• and
• further performing the upshift thereafter from the fixed speed ratio according to the accelerator opening.