Device for monitoring the stability of a tilting semitrailer

The apparatus has a first sensor unit which determines an angle of the tractor-trailer (SZ). A second sensor unit determines a tilt angle of a tipper main portion of the tilting semi-trailer (KSA). A third sensor unit determines tilt angle (EW) between the towing vehicle (ZF) and tipping semi-trailer. A control unit controls the angle and tilt angle of the tipper main portion and displays hazardous combination of angle and tilt angle.