Abstract
Todays passenger cars are already well equipped with control devices enhancing active safety and stability, like e.g. the ESP-System and its further development SBC (sensotronic brake control) [1]. By an individual adjustment of the brake moments at each wheel an optimal braking during cornering or avoidance of a vehicle spin off can be achieved. As already shown in some preliminary investigations, the similar concept, the use of unilateral brake of the car [2] or of its trailer [3, 4] can help to avoid trailer swing and in the second case to stabilize the trailer without a special action of the car driver or a control system of the car. This strategy of a trailer based control system only, will make it possible to tune the car control systems in an optimal way without taking care of an additional or different stabilization task in case of a passenger car-trailer operation.