The Lateral Stability Control of Vehicles Based on Sliding Mode Method

Focusing on lateral stability control of vehicle, this paper presents a braking control approach for vehicles cornering or changing path based on sliding mode control strategy. The proposed braking control makes vehicle system track the desired yaw rate and side slip angle while the corresponding situation. The controller is consisted of three parts. The upper controller is an effective yaw moment controller to calculate the desired yaw moment for vehicle stability. And the lower controller is an active braking controller based on the sliding mode control method to track a reference slip ratio for anti-slip. And in the middle part, the relationship between the desired yaw moment and slip ratio is established based on vehicle dynamics theory. In the end, the simulations based on Matlab/Simulink software show that the proposed controller has the good effectiveness under varying conditions.