METHOD AND APPARATUS FOR CONTROLLING LINE PRESSURE OF CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM

摘要

A method and apparatus for controlling line pressure of a continuously variable transmission system, such transmission system being controlled by either expanding or contracting the width of the channel between a stationary pulley member and a movable pulley member contactably and removably set with respect to the stationary pulley member, in order to either expand or contract the radius of the rotation of a belt wound on the pulley members for eventually varying the belt ratio. Apparatus controls line pressure by raising it by a specific amount in the presence of predetermined conditions when slipping of clutch is detected during the drive mode of the system so that optimum clutch engagement can eventually be implemented.