Patent ID: 9133930
Filing Date: 2015-09-15
Classification: F16H

Abstract:
1. A continuously variable transmission that includes a primary pulley, a secondary pulley, and a belt wound therebetween, and that decides a pulley thrusting force by a primary pressure supplied to the primary pulley and a secondary pressure supplied to the secondary pulley, the continuously variable transmission comprising: a unit for determining a shift returning to low configured to determine whether the shift returning to low, changing a speed ratio of the continuously variable transmission to lowest when a vehicle decelerates, is being performed or not; and the unit for computing a measured lower limit value configured to calculate a primary pressure measured lower limit value at which the belt begins to slip actually, based on a deceleration of the vehicle and the speed ratio of the continuously variable transmission, wherein a lower limit value of a target value of the primary pressure during the shift returning to low is set as the primary pressure measured lower limit value.