Method for shifting a twin-clutch transmission and twin-clutch transmission arrangement

A method for shifting a twin-clutch transmission having first and second transmission input shafts and a transmission output shaft, the input shafts having associates first and second friction clutches, respectively, in which the first clutch initially transmits engine torque in a state of static friction and the second clutch is initially open comprising:

• bringing the second transmission shaft to a synchronous speed with a selected gear to be engaged and engaging the selected gear;
• closing the second clutch in a regulated manner using a slip controller so that, at a desired speed of the engine-side of the second clutch, the second clutch operates at a slip limit,
• opening the first clutch in a controlled manner until the second clutch, which is being operated at the slip limit by the slip controller, transmits the full torque from the engine;
• fully closing the second clutch, so that the second clutch transmits the engine power by itself;
• and
• when the first clutch is fully open, disengaging the initial gear essentially without torque;
• wherein the speed of the second transmission input shaft is changed with the aid of a synchronizer to the appropriate synchronous speed;
• and
• wherein the synchronizer takes torque required to accelerate the second transmission input shaft from the transmission output shaft.