Control apparatus and method for continuously-variable transmission of vehicle

摘要

A control apparatus for an automatic transmission includes a control section having a normal control section configured to actuate the step motor (27) at a first speed by using a feedback control including an integral control in accordance with the target pulley ratio (Ipt) and the actual pulley ratio (Ipr), a high speed control section (103a) configured to actuate the step motor (27) at a second speed higher than the first speed by an open loop control based on the target pulley ratio, a judgment section (101) configured to judge whether there is a high speed operation request, and a switch section (P1) configured to select the normal control performed by the normal control section (103b) at a normal condition, and to switch to the high speed control when a switch start condition is satisfied, the switch start condition including a first condition that the judgment section judges there is the high speed operation request.