Automatic transmission for vehicle
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United States of America Patent
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Aug 16, 2016
Grant Date -
Sep 3, 2015
app pub date -
Jan 22, 2015
filing date -
Feb 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An automatic transmission includes first to third planetary gear mechanisms; a second sun gear, a second carrier, and a second ring gear in a velocity diagram being defined as a first element, a second element, and a third element, respectively, in a case where a single pinion type planetary gear mechanism is applied as the second planetary gear mechanism; and the second carrier, the second ring gear, and the second sun gear in a velocity diagram being defined as the first element, the second element, and the third element, respectively, in a case where a double pinion type planetary gear mechanism is applied as the second planetary gear mechanism. A first brake fixes a first sun gear to a housing, a second clutch connects the first sun gear and the third element, and a fourth clutch connects the second element and a third carrier when a reverse speed is established.
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