Abstract： To solve the rollover problem of minibus during driving, the parametric model and the vehicle reference model of minibus were established. According to the working principle of active suspension and the dynamic characteristics of differential braking, the antirollover control subsystems of active suspension and differential braking were respectively established to propose the integrated antirollover control strategy. Using the lateral load transfer rate as trigger condition, the active suspension control or the differential braking control was implemented according to the vehicle speed to reduce the vehicle yaw rate and the roll angle of vehicle for achieving the antirollover control. The cosimulation model of integrated control system was established in Matlab/Simulink and CarSim, and the integrated control strategy of antirollover was verified by the simulation test under two typical working conditions of hook test and angle step test. The results show that the integrated antirollover control system can effectively reduce the vehicle′s body roll angle, yaw rate and other parameters under extreme conditions, and the rollover stability of minibus can be improved to reduce the probability of rollover.
