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Title:
CLUTCH CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2014/050462
Kind Code:
A1
Abstract:
Provided is a clutch device capable of reducing energy loss caused by clutch-engaging pressure. The clutch control device for an automatic transmission is equipped with: a manual valve (57) for outputting a clutch-engaging pressure when the drive position is selected; a clutch (16) capable of clutch engagement by moving a clutch piston (21) using the supply of the clutch-engaging pressure; a clutch-release valve (54) capable of outputting the clutch-release hydraulic pressure by bypassing the manual valve (57); and a locking mechanism (32) for making it possible to mechanically lock the clutch-piston (21) position in a state of reduced clutch-engaging pressure when the clutch is engaged using the supply of clutch-engaging pressure, and also releasing the lock using the clutch-releasing pressure from the clutch-release valve (54).

Inventors:
NAKANO YUSUKE (JP)
KOBAYASHI KATSUYA (JP)
KATSUMATA TETSUSHI (JP)
MIYAKE MASAO (JP)
Application Number:
PCT/JP2013/073734
Publication Date:
April 03, 2014
Filing Date:
September 04, 2013
Export Citation:
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Assignee:
JATCO LTD (JP)
NISSAN MOTOR (JP)
International Classes:
F16D23/12; F16D25/12; F16H61/18
Foreign References:
JP2010242852A2010-10-28
JP2010216501A2010-09-30
JPS6111028U1986-01-22
JPS5939326U1984-03-13
US20100179026A12010-07-15
US20080314711A12008-12-25
DE2540191A11977-03-17
JP2012197851A2012-10-18
JPH0712221A1995-01-17
JP2012123864A2012-06-28
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
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