HYBRID POWERTRAIN SYSTEM INCLUDING SMOOTH SHIFTING AUTOMATEDTRANSMISSION

摘要

A powertrain system (20) is provided that includes a prime mover (22) and a change-gear transmission (24) having an input (42), at least two gear ratios , and an output (44). The powertrain system (20) also includes a power shunt (27) configured to route power applied to the transmission (24) by one of th e input (42) and the output (44) to the other one of the input (42) and the output (44). A transmission system and a method for facilitating shifting of a transmission system are also provided.