Patent ID: 7179196

Claim:
An input torque control system of a belt-type continuously variable transmission in which a belt is wound between a primary pulley to which an input torque is inputted and a secondary pulley of an output shaft side, and a primary pulley pressure and a secondary pulley pressure is respectively applied to the primary pulley and the secondary pulley so that an actual gear ratio of these pulleys that is obtained from rotation speed of the primary pulley detected by a primary pulley side rotation detecting section and rotation speed of the secondary pulley detected by a secondary pulley side rotation detecting section becomes a target gear ratio, comprising: a secondary pulley pressure sensor for detecting the secondary pulley pressure that is supplied to the secondary pulley; an input torque control means for controlling the input torque that is inputted to the primary pulley; a vehicle speed detecting section for detecting a speed of a vehicle from a result detected by the secondary pulley side rotation detecting section, and a gear ratio calculating means for calculating the actual gear ratio from results detected by the primary pulley side rotation detecting section and the secondary pulley side rotation detecting section, wherein the input torque control means controls the input torque according to the secondary pulley pressure detected by the secondary pulley pressure sensor when the vehicle speed detecting section detects that a speed of the vehicle is zero and the actual gear ratio calculated by the gear ratio calculating means is increased to a predetermined gear ratio or higher.