Title:
An oil pressure control device of vehicles
Document Type and Number:
Japanese Patent JP5971181
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicle hydraulic controller capable of outputting a strong drive torque even if a failure occurs to a control valve controlling a hydraulic pressure for changing a transmission gear ratio of a continuously variable transmission or a control valve outputting a hydraulic pressure for engaging an engagement device.SOLUTION: A vehicle hydraulic controller comprises a selector valve 38 switching an oil path for establishing communication to supply a second signal pressure Poutput from a second pilot valve SLU to a pressure control valve 32 so as to increase a transmission gear ratio of a continuously variable transmission 12 when a first signal pressure Poutput from a first pilot valve SLP is equal to or higher than a hydraulic pressure output when the transmission gear ratio of the continuously variable transmission 12 is controlled.
Inventors:
Yusuke Ogata
Application Number:
JP2013088190A
Publication Date:
August 17, 2016
Filing Date:
April 19, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H61/00; F16H61/12; F16H61/66
Domestic Patent References:
| JP2007046620A | ||||
| JP2010286052A |
Attorney, Agent or Firm:
Watanabe strong