Continuously variable transmission and shift control method thereof

摘要

The transmission controller (12) executes a control to cause the through speed ratio to follow the final through speed ratio by changing only the speed ratio of the variator (20) if a shift instruction is given from the driver a plurality of times in a row when the manual mode is selected, and advances the start of a change in the speed ratio of the sub-transmission mechanism (30) or accelerates the progression of the change of the speed ratio as compared with the case where the manual mode is not selected when the speed ratio of the variator (20) is maximized or minimized and the through speed ratio cannot follow the final through speed ratio.