Patent ID: 8105192

Claim:
A motor vehicle transmission having a continuously variable transmission ratio for transmitting torque, said transmission comprising: a torque converter having an input side and an output side; a first transmission stage having a predetermined gear ratio connected to the output side of the torque converter and connected to a transmission output shaft through a first clutch for providing a first forward speed range; a second, continuously variable transmission stage connected to the output side of the torque converter through a second clutch and to the transmission output shaft for providing a second forward speed range; wherein during starting forward movement of a vehicle containing the transmission the first clutch is engaged and the second clutch is disengaged to provide the first forward speed range while bypassing the continuously variable transmission stage, and the second forward speed range is provided by disengaging the first clutch and engaging the second clutch to transmit torque through the continuously variable transmission stage, wherein the transmission ratio of the continuously variable transmission stage is adjusted to a value such that the rotational speed of the transmission output shaft remains constant when the transmission of torque to the transmission output shaft is shifted between the first transmission forward speed range and the second transmission forward speed range.