Multi-speed transmission having a stacked planetary gear set
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United States of America Patent
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May 6, 2014
Grant Date -
May 30, 2013
app pub date -
Nov 30, 2011
filing date -
Nov 30, 2011
priority date (Note) -
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Abstract
A transmission of the present invention has an input member, an output member, two planetary gear sets, a planetary gear set assembly, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The planetary gear set assembly is a stacked planetary gear set that includes a first, second, third and fourth member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish at least eleven forward speed ratios and at least one reverse speed ratio.
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