DUAL CLUTCH TRANSMISSION WITH MULTIPLE RANGE GEARING

摘要

A vehicle powertrain comprising a multiple speed transmission (10) with ratio range gearing (12) is disclosed. The range gearing (12) provides increased ratio coverage. A transition between a low speed range and a high speed range is achieved with no torque interruption whereby a gear ratio shift between the highest gear ratio in the low speed range and the lowest gear ratio in the high speed range occurs in a seamless fashion.