Method for operating a driver assistance system and driver assistance system

A driver assistance system for a vehicle combination, comprising:

• a first calculation device that determines at least a first parameter characterizing a potentially unstable driving condition of at least one trailer of the vehicle combination;
• a second calculation device that determines whether an unstable driving condition of the at least one trailer is imminent, based on the at least one determined first parameter;
• a third calculation device that determines at least a second parameter characterizing a position of the at least one trailer;
• and
• an actuation device that automatically actuates at least one element of the vehicle combination, selected from the group comprising a braking device, a drive device and a warning device in such manner that a braking operation of the vehicle combination is initiated at a point in time when the at least one trailer is positioned in the longitudinal direction of a tractor vehicle of the vehicle combination and directly in line behind the tractor vehicle if it is determined that an unstable driving condition of the at least one trailer is imminent.

A computer software product, comprising:

• a storage medium readable by a computing unit of a driver assistance system of a vehicle combination, the vehicle combination including a tractor vehicle and at least one trailer, and the driver assistance system is designed to automatically actuate at least one element of the vehicle combination selected from the group comprising a braking device, a drive device and a warning device, and the storage medium stores instructions for the computing unit to carry out a method comprising:
• determining at least a first parameter characterizing a potentially unstable driving condition of the at least one trailer;
• determining whether an unstable driving condition of the at least one trailer is imminent based on the at least one calculated first parameter;
• and
• if it is determined that an unstable driving condition of the at least one trailer is imminent, determining at least one second parameter characterizing a position of the at least one trailer and automatically actuating the at least one element in such manner that a braking operation of the vehicle combination is initiated at a point in time when the at least one trailer is positioned in the longitudinal direction of the tractor vehicle and directly in line behind the tractor vehicle.