Modeling and control of vehicle active stabilizer bar system with hydraulic motor

Taking active stabilizer bar system with hydraulic motor as the object, a nonlinear dynamics model of active stabilizer bar system with hydraulic motor was established. The controller was designed with the control method for the feedback linearization sliding mode. And the stability of the control system was analyzed by Lyapunov stability theory. On the basis of the CarSim-MATLAB/Simulink co-simulation of the active stabilizer bar system, the response curves on the double-lane-change conditions were achieved. A real vehicle test was also worked out for the verification of the desired control method. The results show that the active stabilizer bar system has the preferable characteristics of anti-roll and ride comfort compared with the passive stabilizer bar.