Family of five-speed transmission mechanisms having three interconnected planetary gear sets

摘要

The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets, two clutches and two brakes. The powertrain includes an engine and torque converter that is continuously connected with at least one member of the third planetary gear set and an output member that is continuously connected with another member of the third planetary gear set. The two clutches and two brakes provide interconnections between various gear members, the transmission housing, and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios and one reverse speed ratio.