Lateral stability control of a long heavy vehicle combination by active steering of the towed units

A complete vehicle combination controller for enhancing the lateral stability of long heavy vehicle combinations by active steering of the towed units is presented. As a case study, the controller is developed for a truck-dolly-semitrailer combination and is evaluated in a sine with dwell maneuver, using a nonlinear model of this combination. The simulation results show a significant decrease in yaw rate rearward amplification and offtracking of the controlled vehicle.