Patent ID: 8152682

Claim:
A hybrid powertrain comprising: an engine; a multi-speed transmission having an input member; an output member; first, second, third and fourth planetary gear sets each having first, second and third members; wherein at least one of said planetary gear sets is located radially outward of and concentrically surrounds the input member; a first interconnecting member continuously connecting said first member of said first planetary gear set with said first member of said second planetary gear set; a second interconnecting member continuously connecting said second member of said first planetary gear set with said third member of said fourth planetary gear set; a third interconnecting member continuously connecting said second member of said third planetary gear set with said second member of said fourth planetary gear set; a fourth interconnecting member continuously connecting said third member of said second planetary gear set with said first member of said third planetary gear set; wherein said first, second and third members of said first, second, third and fourth planetary gear sets comprise a sun gear member, a planet carrier assembly member and a ring gear member, respectively; five torque-transmitting devices for selectively interconnecting said members of said planetary gear sets with a stationary member, or with other members of said planetary gear sets, said five torque-transmitting devices being engaged in combinations of three to establish at least eight forward speed ratios and at least one reverse speed ratio between said input member and said output member; and a drive motor, a damper, and a pump operatively connected with the multi-speed transmission and the engine.