Study on the stability of high-speed turning braking based on the hardware-in-the-loop test

Abstract

During the tire cornering braking process, busses easily cause traffic accidents such as slewed or tail flick if the tire is not locked. Therefore, in the process of cornering braking, the theoretical controlled slip rate of approximately 0.2 is not sufficient. To improve the stability of the vehicle, the Hardware-in-the-Loop Test is introduced. The fuzzy PID algorithm is used to calculate the tire slip rate of four tires using the actual yaw velocity and sideslip angle values and the expected difference among the values. The high-speed vehicle was tested on high- and low-adhesion roads. The study shows that this method outputs the new slip rate, improves the vehicle stability in the loss of braking efficiency, further perfects the study of the antilock braking system and has practical significance.