CLUTCH CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
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United States of America Patent
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N/A
Issued Date -
Oct 1, 2015
app pub date -
Sep 4, 2013
filing date -
Sep 26, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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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).
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