Procedure and a control apparatus for the safe division of a drivetrain

A control device for preventing undesired rolling of a vehicle from a stationary position the vehicle having a drive train comprising an automated clutch, an automated manual transmission, and a control device, which controls at least the automated clutch, the automated manual transmission and at least one transmission idling configuration along the drive train where a mechanical neutral position of the automated manual transmission can be set;

• a decision-making unit for determining a basis for shifting the automated manual transmission to the mechanical neutral position;
• wherein a sub-unit is installed within the control device and the sub-unit, during a gear shift of the automated manual transmission to the neutral position, sends a signal for selling the drive train into at least two transmission idling configurations for setting the neutral position, and the sub-unit, at the point in time when a gear of the automated manual transmission is shifted to the neutral position, maintains the clutch in a disengaged position for an amount of time that is sufficient for emission of a signal which includes information confirming the setting of at least one of the transmission idling configurations in the mechanical neutral position;
• the sub-unit emits a clutch disengaging signal after at least two actuation signals, relating to setting of the at least two transmission idling configurations, are present;
• and
• the control device during the ear shift of at least the automated manual transmission to the neutral position, sets the two transmission idling configurations in the neutral position, if the decision-making unit can not directly trace the gear shift back to a drive request.