JPS619655U

JPS619655U - Automatic transmission hydraulic control device

Info

Publication number: JPS619655U
Application number: JP9436684U
Authority: JP
Inventors: 勉渡辺
Original assignee: 三菱自動車工業株式会社
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図は本考案の一実施例としての自動変速機の油圧制御装
置を示すもので、第１図はその概略構成図、第２図は本
装置のための自動変速機における動力伝達部の概略構成
図である。The figures show a hydraulic control device for an automatic transmission as an embodiment of the present invention. Fig. 1 is a schematic configuration diagram thereof, and Fig. 2 is a schematic configuration of a power transmission section in an automatic transmission for this device. It is a diagram.

Claims

[Scope of utility model registration request]

The automatic transmission is equipped with a hydraulically actuated servo device that has a release side oil chamber, an engagement side oil chamber, and an engagement side auxiliary oil chamber for the friction element for second-speed engagement control, and also controls the opening of the throttle valve. A throttle valve that generates a corresponding control pressure, a regulator valve that adjusts the oil pressure supplied to the servo device according to the control pressure from the throttle valve, and a regulator valve that automatically selects the optimal gear according to the engine operating condition. A manual that generates hydraulic pressure according to the select position for drive range operation and the select position for 2 range in conjunction with the selector lever for selecting 2 range operation that realizes selectable drive range operation and operation in 2nd speed state. a first shift valve that determines the shift timing between 1st and 2nd speeds according to engine operating conditions and generates hydraulic pressure for controlling 2nd speed during 2nd speed; It is equipped with a second shift valve that determines the shift timing between and generates 3rd speed control oil pressure when in 3rd speed, and receives the above 2nd speed control oil pressure and 3rd speed control oil pressure to change the drive range operation from the above drive range operation to 2 range operation. automatic transmission, characterized in that a control valve is provided that supplies hydraulic pressure corresponding to the select position for the two ranges from the manual valve to the latch-side auxiliary oil chamber of the servo device when switching to the servo device. Machine hydraulic control device.