AUTOMATIC TRANSMISSION AND CONTROL METHOD FOR THE AUTOMATIC TRANSMISSION
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Sep 24, 2013
filing date -
Sep 26, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A control unit performs a engaging control, which supplies an ON pressure to a engaging-side oil chamber to set a lock mechanism to a locked state and then decreases the hydraulic pressure of the engaging-side oil chamber, when a running mode is selected, and performs a releasing control, which supplies an OFF pressure to a release-side oil chamber to set the lock mechanism to an unlocked state and then decreases the hydraulic pressure of the release-side oil chamber, when a non-running mode is selected. The control unit supplies the OFF pressure to the release-side oil chamber when the stop of the operation of the driving force source is notified, and allows stopping the operation of the driving force source when the lock mechanism becomes the unlocked state afterward.
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