Multi-speed transmission
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United States of America Patent
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May 6, 2014
Grant Date -
Jun 6, 2013
app pub date -
Dec 1, 2011
filing date -
Dec 1, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A transmission of the present invention has an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear, a carrier member supporting a plurality of planet pinion gears and a ring gear member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.
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