METHOD FOR LEARNING PULLEY PRESSURE OF CONTINUOUSLY VARIABLE TRANSMISSION

摘要

The present invention relates to a pulley pressure learning method of a continuously variable transmission, and more particularly, to a continuously variable transmission having a pressure sensor only on one side of a drive pulley and a driven pulley, To a pulley pressure learning method of a continuously variable transmission.A pulley pressure learning method of a continuously variable transmission including a driven pulley and a driven pulley, wherein a pressure sensor is provided on either one of the pulleys, comprising the steps of: (a) Performing a sensor measurement learning mode for the sensor; (B) performing a speed change ratio learning mode when the pressure is converged to a compensating pressure determined by a difference between a sensor pressure value and a target pressure value as a result of the step (a); And (c) applying and storing a learned pressure value of the driven and driven pulleys when the speed ratio is converged by a compensating pressure determined by a difference between a target speed change ratio and an actual speed change ratio as a result of performing the step (b); The pulley pressure learning method of the continuously variable transmission.;