| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for a continuously variable transmission capable of setting a speed ratio of a CVT most Low at the next start of a vehicle when the vehicle travels for a retreat and stops upon a failure of a supply system of primary sheave pressure, in the vehicle including the CVT.SOLUTION: A control device for a continuously variable transmission includes the continuously variable transmission and a hydraulic pressure control circuit, changes over a sheave pressure changeover valve to a failure state and controls starting clutch pressure to change over a starting clutch to a release state when having down-fail (step S1), controls the starting clutch pressure to change over the starting clutch to an engagement state (step S6) when the vehicle velocity lowers to a value allowing the starting clutch to be engageable (step S5), and thereafter changes over the sheave pressure changeover valve to a normal state to move a speed ratio to a maximum value (step S8), wherein a hydraulic pressure gradient of the starting clutch pressure in changing over the starting clutch to an engagement state is set higher than a predetermined hydraulic pressure gradient in garage control. |
