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1. (WO2017038503) HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

Pub. No.:    WO/2017/038503    International Application No.:    PCT/JP2016/074230
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: F16H 61/02
F16H 61/12
Applicants: AISIN AW CO.,LTD.
アイシン・エィ・ダブリュ株式会社
TOYOTA JIDOSHA KABUSHIKI KAISHA
トヨタ自動車株式会社
Inventors: TSUCHIDA,Kenichi
土田 建一
HAYASHI,Toshiaki
林 利明
SERIGUCHI,Yuta
芹口 祐太
TAKASU,Masafumi
高巣 雅史
KIMURA,Yoichiro
木村 洋一郎
ISHII,Kenichi
石井 賢一
MORIYAMA,Shuji
森山 修司
SOGA,Yoshinobu
曽我 吉伸
NITANI,Hiromitsu
二谷 啓允
INAGAKI,Takafumi
稲垣 貴文
Title: HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Abstract:
The present invention relates to a hydraulic control device for an automatic transmission, the hydraulic control device being provided with: a line pressure modulator valve (20) that generates source pressure; a linear solenoid valve (SL2) that is capable of supplying engagement pressure (PSL2) on the basis of modulator pressure (PLPM2); and a supply pressure switching part (28) that is capable of switching between a first state in which the engagement pressure (PSL2) can be supplied to a second clutch (C2) and a second state in which the modulator pressure (PLPM2) can be supplied to the second clutch (C2), and that retains the first state during normal times, but switches the state from the first state over to the second state during abnormal times.