Title:
HYDRAULIC CONTROLLER FOR AUTOMATIC TRANSMISSION HAVING HYDRAULIC POWER TRANSMISSION WITH LOCKUP DEVICE
Document Type and Number:
Japanese Patent JPS60179568
Kind Code:
A
Abstract:
PURPOSE:To improve a feeling of driving comfortableness, by installing a temperature sensitive select valve which is selected by a feeler member being phase- changed in time of low or high temperature, while feeding a lockup valve with lockup signal hydraulic pressure through this select valve. CONSTITUTION:A temperature sensitive select valve 100, which sets up a shape memory alloy-make spring 108 at the one end side of a spool 104 and a spring 106 at the other end side and being selected according to temperature, is installed, while lockup signal hydraulic pressure is fed to a lockup valve 17 through this temperature sensitive select valve 100. With this constitution, in a state that temperature is low immediately after engine starting, it is possible that a lockup device is no longer operated so that a feeling of driving comfortableness is improved and, what is more, an engine stall is preventable from occurring.
Inventors:
SUGANO KAZUHIKO
Application Number:
JP3542084A
Publication Date:
September 13, 1985
Filing Date:
February 28, 1984
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F16H61/14; (IPC1-7): F16H45/02
Attorney, Agent or Firm:
Toshiyuki Miyauchi