Automatic transmission for vehicle
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United States of America Patent
Stats
-
Aug 16, 2016
Grant Date -
Sep 3, 2015
app pub date -
Feb 24, 2015
filing date -
Feb 28, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An automatic transmission for a vehicle includes a housing, three single pinion type planetary gear mechanisms being supported by the housing, an input shaft supported by the housing and connected to a first carrier, an output shaft connected to a third carrier, a brake, a first clutch selectively connecting the first carrier and a second sun gear, a second clutch, a third clutch, a fourth clutch, and a switching clutch. The switching clutch selectively switches positions to a position where a third ring gear is fixed to the housing, a position where a second carrier is fixed to the housing, or a position where the third ring gear and the second carrier are released relative to the housing. The first clutch connects the first carrier and the second sun gear, and the switching clutch fixes the second carrier to the housing when establishing a reverse speed.
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