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|1. (WO2017154033) CONTROL DEVICE FOR TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION|
|Applicants:||KAWASAKI JUKOGYO KABUSHIKI KAISHA
|Title:||CONTROL DEVICE FOR TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION|
This control device for a toroidal continuously variable transmission is equipped with a position controller for controlling a roller position by outputting a drive signal to a hydraulic actuator. The hydraulic actuator is equipped with a biasing mechanism for forcibly holding the roller position in a prescribed position when the drive signal satisfies a prescribed condition. The position controller is configured so as to execute a startup control during startup of the toroidal continuously variable transmission. During the startup control, the position controller outputs a drive signal so as to cause a hydraulic actuator spool to move back and forth when the temperature of the working fluid supplied to the hydraulic actuator is below a reference temperature, and thereafter, outputs a drive signal which satisfies the prescribed condition when the working fluid temperature reaches or exceeds the reference temperature.