| 摘要 |
PROBLEM TO BE SOLVED: To provide a shift control device for a belt type continuously variable transmission capable of improving convergence performance of actual input rotation speed to target input rotation speed. SOLUTION: In a control device for a belt type continuously variable transmission capable of executing feed forward control controlling oil quantity of an oil pressure chamber based on a corresponding relation of gear ratio and flow in/flow out oil quantity of the oil pressure chamber, and feed back control controlling oil quantity of the oil pressure chamber based on deviation of actual input rotation speed from target input rotation speed when gear ratio between input rotation speed and output rotation speed is controlled, a control quantity establishing means (step S1 or S9) determining a second target input rotation speed by a dulling process of first target input rotation speed, determining a third target input rotation speed with taking delay of control of actual input rotation speed to second target rotation speed into account, and establishing control quantity for an actuator in feed forward control based on change gradient of second target input rotation speed and change gradient of third target input rotation speed. COPYRIGHT: (C)2007,JPO&INPIT |
