Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 16, 2011
Patent Application Number
12371095
Date Filed
February 13, 2009
Patent Primary Examiner
Patent 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 first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish at least nine forward speed ratios and at least one reverse speed ratio.
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