Slip-Control Strategy of Dual Independent Electric Drive Tracked Vehicle

In order to improve the brake performance of a dual independent electric drive tracked vehicle, a dynamic model for braking situation was established. Then, a sliding model controller(SMC) with an auxiliary system was designed to control the slip and its effectiveness was proved. A hardware-in-loop simulation through MATLAB/XPC was compared with the normal SMC and normal integral sliding mode controller (ISMC), the results show that SMC with the auxiliary system has a better performance:a smaller overshoot and steady state error.The disturbance is suppressed effectively. In the initial speed of 65.km/h, the brake distance was shortened by 3.4% and 6.8% compared with the other two methods,respectively. Finally, initial speeds of 30-36.km/h tests was carried out on a flat soil road. Compared with a no-control brake, the displacement was shortened by 1.8.m. It demonstrates the effectiveness of the slip-control strategy. In the same situation, the error between the simulation and test is 18.1%, which validates the accuracy of models.