AUTOMATIC TRANSMISSION WITH FRICTION ELEMENT HAVING LOCK MECHANISM, AND CONTROL METHOD THEREOF
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United States of America Patent
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Issued Date -
Sep 10, 2015
app pub date -
Sep 4, 2013
filing date -
Sep 26, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In an automatic transmission including a friction element having a lock mechanism, to prevent a delay in engagement of the friction element from occurring in a case where travel mode→non-travel mode→travel mode are selected at short time intervals during travel, a control unit or the automatic transmission does not supply an OFF pressure to a disengagement side oil chamber when the non-travel mode is selected by a select switch and a vehicle speed is higher than a stoppage determination vehicle speed.
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