8-speed hybrid transmission
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United States of America Patent
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May 1, 2012
Grant Date -
Sep 30, 2010
app pub date -
Mar 25, 2009
filing date -
Mar 25, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The hybrid transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The hybrid transmission includes a motor/generator, three planetary gear sets, five torque-transmitting devices, three external gear sets and a final drive gear set. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with the final drive gear set. The five torque-transmitting devices provide interconnections between various planetary and external gear members, the input shaft, and the transmission housing, and are operated in combinations of three to establish eight forward speed ratios and one reverse speed ratio.
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