Analysis of Roll Control System to Eliminate Liquid Sloshing Effect on Lateral Stability of an Articulated Vehicle Carrying Liquid

In this paper, in order to limit the liquid sloshing effect on lateral dynamic of an articulated vehicle carrying liquid, an active roll control system is proposed. First, a sixteen-degrees-of-freedom nonlinear dynamic model of an articulated vehicle is developed then, using TruckSim software the model is validated. Next, the dynamic interaction of the fluid cargo with the vehicle, by integrating a quasidynamic slosh model with a tractor semitrailer model is investigated. In order to design the control system, sliding mode control is used. Also, to investigate the rollover stability of the vehicle, lateral load transfer ratio is considered as an important factor. The dynamic system performance for different filled volumes is exhibited in stepsteer and slalom standard maneuvers. The simulation results show that the proposed roll control system performs appropriately in target control achievement and lateral load transfer ratio reduction.