CONTROL DEVICE FOR BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION

摘要

Provided is a control device for a belt-type continuously variable transmission (CVT) provided with an engine (1), a belt-type continuously variable transmission mechanism (4), a forward-reverse switching mechanism (3) having a forward clutch (31) and a reverse brake (32), and a hydraulic pressure control circuit (71) which controls the pulley hydraulic pressure, and the fastening element pressure of the forward clutch (31) and the reverse brake (32). This control device is provided with a selection control means which, when the engine (1) is in operation and the N range is selected, outputs to the hydraulic pressure control circuit (71) a pulley hydraulic pressure command by which a clamp pressure during idling is obtained that is higher than the minimum pressure during idling (=MIN pressure during idling) which is calculated from the input torque. Even when there is input of drag torque, the position of an element gap occurring in the belt can be secured.