Title:
CONTROL DEVICE FOR TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/154033
Kind Code:
A1
Abstract:
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.
Inventors:
NAKASHIMA KENICHI
GOI TATSUHIKO
WATANABE KOJI
GOI TATSUHIKO
WATANABE KOJI
Application Number:
PCT/JP2016/001221
Publication Date:
September 14, 2017
Filing Date:
March 07, 2016
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F16H61/02; F16H15/38; F16H61/664
Foreign References:
JP2008014325A | 2008-01-24 | |||
JPH11141670A | 1999-05-25 | |||
JP2000055177A | 2000-02-22 | |||
JP2011112093A | 2011-06-09 |
Other References:
See also references of EP 3428482A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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