Patent ID: 6871129

Claim:
A control system that controls a continuously variable transmission of a vehicle, in which the continuously variable transmission changes a speed ratio of an input rotating member and an output rotating member by continuously changing a radial position at which torque is transmitted between a power transmitting member interposed between the input rotating member and the output rotating member, and each of the input and the output rotating members, the radial position being measured from a center of rotation of each of the input and the output rotating members, the control system comprising a controller that controls a capacity of torque transmission between each of the input and output rotating members and the transmitting member based upon an input torque of the continuously variable transmission, wherein the controller: calculates an estimated input torque of the continuously variable transmission; calculates an amount of variation in the calculated estimated input torque of the continuously variable transmission; and compensates for a delay in the estimated input torque on the basis of the calculated variation of the estimated input torque of the continuously variable transmission prior to controlling the capacity of the torque transmission.