Patent ID: 6716133
Filing Date: 2004-04-06
Classification: F16H

Abstract:
A multi-speed transmission comprising:an input shaft; an output shaft; first, second and third planetary gear sets each having first, second and third members; said input shaft being continuously interconnected with a member of said first or third planetary gear sets, said output shaft being continuously interconnected with another member of said first or third planetary gear sets; 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 interconnecting said second member of said second planetary gear set with said first member of said third planetary gear set; a transmission housing continuously connected to said third member of said second planetary gear set; a first torque-transmitting mechanism selectively interconnecting said second member of said first planetary gear set with said second member of said third planetary gear set; a second torque-transmitting mechanism selectively interconnecting said second or third member of said third planetary gear set with a member of said first planetary gear set, said members interconnected by said second torque-transmitting mechanism being different from the members interconnected by said first torque-transmitting mechanism; a third, torque-transmitting mechanism selectively interconnecting a member of said first or third planetary gear set with another member of said first, second, or third planetary gear set, said members interconnected by said third torque-transmitting mechanism being different from the members interconnected by said first or second torque-transmitting mechanism; a fourth torque-transmitting mechanism selectively interconnecting a member of said first, or third planetary gear sets with said transmission housing or another member of said first, second, or third planetary gear sets, said members interconnected by said fourth torque-transmitting mechanism being different from the members interconnected by said first, second or third torque-transmitting mechanism; and said first, second, third and fourth torque-transmitting mechanisms being engaged in combinations of two to establish at least five forward speed ratios and a reverse speed ratio between said input shall and said output shaft.