A CONTROL SYSTEM FOR A CONTINUOUSLY VARIABLE TRANSMISSION FOR A MOTOR VEHICLE

摘要

A control system for a motor vehicle provided with a continuously variable transmission and with an electromagnetic clutch for transmitting torque of an engine to the transmission. The transmission has a line pressure control valve having ports and a spool, a hydraulic circuit for supplying oil to the line pressure control valve so as to shift the spool to control the line pressure. When the clutch is slipping at the start of the vehicle, the line pressure control valve is controlled in accordance with a clutch transmitting torque. When the clutch is engaged, the control valve is controlled in accordance with an engine torque.