CONTINUOUSLY VARIABLE TRANSMISSION AND METHOD FOR CONTROLLING CONTINUOUSLY VARIABLE TRANSMISSION

摘要

The present invention is provided with: a first determination unit that determines whether a designated pressure of a primary pulley pressure has become a line pressure during upshifting; a designated pressure control unit that, when it has been determined that a target shifting speed is no greater than a predetermined shifting speed and it has been determined that the gear ratio is not a target gear ratio, causes only the designated pressure of the primary pulley pressure to be higher than the line pressure; and an estimated time detection unit that detects a predetermined time from when it is determined that the target shifting speed is no greater than the predetermined shifting speed and the designated pressure of the primary pulley pressure has been caused to be greater than the line pressure until it is possible to deem the primary pulley pressure to be equivalent to the line pressure. The designated pressure control unit calculates the deviation between the line pressure designated pressure and the designated pressure of the primary pulley after the estimated predetermined time has elapsed, and performs gear shifting control of the continuously variable transmission after the predetermined time has elapsed while maintaining the deviation as-is.