Abstract: A motor-driven trailer and towbar system includes a towbar having a vehicle side end configured to connect with the vehicle and a trailer side end configured to connect with a trailer coupling. The towbar is pivotably coupled to the trailer and configured to pivot along a pivoting path (P) between a lowered position (L) and a raised position (R) with respect to the trailer. At least one first sensor element is configured to detect a position of the towbar along the pivoting path (P). A control unit (TCU) is in communication with the at least one first sensor element and is configured to switch the system between an operating mode and a parking mode. The system is switched into the parking mode when the towbar is in a raised position (R) and is switched into the operating mode when the towbar is in a lowered position (L).

Abstract: A method for controlling a trailer driven by an electric motor comprises defining a distance between the trailer and a towing vehicle as a neutral position and determining an actual distance between the trailer and the towing vehicle. A deviation between the actual distance and the neutral position is determined and output as a distance value. The braking of the trailer is electrically-actuated when the actual distance is decreased relative to the neutral position by at least a first distance value. The braking of the trailer is mechanically-actuated when the actual distance is decreased relative to the neutral position by at least a second distance value, wherein the second distance value is greater than the first distance value. The trailer is accelerated by the electric motor when the actual distance is increased relative to the neutral position by a third distance value.

Abstract: A method for controlling a trailer driven by an electric motor comprises defining a distance between the trailer and a towing vehicle as a neutral position and determining an actual distance between the trailer and the towing vehicle. A deviation between the actual distance and the neutral position is determined and output as a distance value. The braking of the trailer is electrically-actuated when the actual distance is decreased relative to the neutral position by at least a first distance value. The braking of the trailer is mechanically-actuated when the actual distance is decreased relative to the neutral position by at least a second distance value, wherein the second distance value is greater than the first distance value. The trailer is accelerated by the electric motor when the actual distance is increased relative to the neutral position by a third distance value.