CONTROL DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION

摘要

A control device for a continuously variable transmission is provided with a variator (20), a hydraulic control circuit (11) with a primary pressure solenoid (11b), and a transmission controller (12) for controlling the gear change ratio of the variator (20) by feedback control. Said control device for a continuously variable transmission (4) with an auxiliary transmission is provided with a high limiter control means (Figure 5) for performing high limiter control, which limits the gear change ratio to a high gear change limit line when there is a request to limit the high gear change ratio. The transmission controller (12) comprises a primary pressure lower limit-regulating control unit (figure 4) for reducing the designated primary pressure to the primary pressure solenoid (11b) to a final target Pri pressure lower limit during high limiter control when the gear change ratio is higher than the high limit line and high limiter control begins to operate.