Analysing motion of a model of an articulated vehicle composed of truck and trailer on the test stand it has been found that some axles of the threeaxles semitrailer truck roll along paths different from rood turning radius, and as a result the truck wheels slip impairing controllability and stability of the articulated vehicle on slippery roads. The important concequence of applying the proposed device is minimizing the actuation time and keeping the articulated vehicle controlled and stable against skidding. This device has developed by the authors to increase rood grip of the tyres of the articulated vehicle wheels and to diminish possibility of getting the vehicle involved into an accident.