Automated drive train for a motor vehicle and method of controlling a drive train

A method for controlling a drive train of a motor vehicle comprising:

• a single friction clutch, which is actuatable by means of a first actuator and is connected at the input side with a motor of the vehicle,
• a shift transmission which is connected to the output side of the friction clutch and comprises a first plurality of wheel sets for engaging and disengaging corresponding forward gears and a corresponding plurality of positive gear shift clutches, the gear shift clutches each having synchronization means and being actuatable by a second plurality of second actuators for engaging and disengaging the gears, where a first actuator and second actuators are controlled in coordinated manner during a gear change,
• wherein the synchronization means are suited for synchronizing under partial load and the actuators are controlled such that the friction clutch is not completely opened for at least one type of gear change.

A method for controlling a drive train of a motor vehicle comprising:

• a single friction clutch, which is actuatable by means of a first actuator and is connected at the input side with a motor of the vehicle,
• a shift transmission which is connected to the output side of the friction clutch and comprises a first plurality of wheel sets for engaging and disengaging corresponding forward gears and a corresponding plurality of positive gear shift clutches, the gear shift clutches each having synchronization means and being actuatable by a second plurality of second actuators for engaging and disengaging the gears, where a first actuator and second actuators are controlled in coordinated manner during a gear change,
• wherein the synchronization means are suited for synchronizing under partial load and the actuators are controlled such that one and the same drive train is controlled to carry out a gear change under one of three possible modes depending on the conditions of the gear change to be made, wherein the three possible modes of gear changes take place with an opened, a closed or with a slipping friction clutch.