Patent ID: 7341537
Filing Date: 2008-03-11
Classification: F16H

Abstract:
1. A transmission comprising: an input member; an output member; a stationary member; first, second, and third planetary gearsets each having respective first, second, and third members; said first member of said first planetary gearset being continuously operatively connected to said input member for unitary rotation; said second member of said first planetary gearset being continuously operatively connected to said stationary member; said first member of said second planetary gearset being continuously operatively connected to said first member of said third planetary gearset for unitary rotation; said third member of said second planetary gearset being continuously operatively connected to said second member of said third planetary gearset for unitary rotation; said third member of said third planetary gearset being continuously operatively connected to said output member for unitary rotation; and first, second, third, fourth, fifth, and sixth torque transmitting devices operative to selectively connect members of said planetary gearsets with said input member, said stationary member, or with other members of said planetary gearsets to provide at least six forward speed ratios; wherein said first torque transmitting device is configured to selectively couple said input member and said first member of said first planetary gearset with said third member of said second planetary gearset and said second member of said third planetary gearset for unitary rotation; wherein said second torque transmitting device is configured to selectively couple said third member of said first planetary gearset with said second member of said second planetary gearset for unitary rotation; wherein said third torque transmitting device is configured to selectively couple said second member of said third planetary gearset and said third member of said second planetary gearset with said stationary member; wherein said fourth torque transmitting device is configured to selectively couple said third member of said first planetary gearset with said third member of said second planetary gearset and said second member of said third planetary gearset for unitary rotation; wherein said fifth torque transmitting device is configured to selectively couple said first member of said first planetary gearset with a member of said second planetary gearset for unitary rotation; and wherein said sixth torque transmitting device is configured to selectively couple a member of said second planetary gearset with said stationary member.