Path tracking of Mr Fluid braking System based on PID control

Abstract

With the rise of intelligent vehicle and driverless technology and the continuous improvement of vehicle speed, people have higher and higher requirements for vehicle safety performance. Mr Brake can be integrated with vehicle electronic control system to improve the corresponding speed of the braking system to a large extent and shorten the braking distance of the vehicle. This paper introduces the design theory and analysis of Mr Fluid. The working principle is introduced, and the torque required by the front and rear wheels of the vehicle braking process is deduced by the vehicle dynamics model. The Mr Fluid braking model based on PID control is built by using Matlab-simulink software. By tracking the straight line without fluctuation, the straight line with fluctuation and the right Angle path, the simulation results show that By adding PID control model to the magnetorheological braking control, it can effectively reduce the overshoot in the fluctuating route during the braking process, and the corresponding speed is faster and the path tracking effect is better, which provides an innovative thinking method for the development of vehicle brake and the development of driverless technology.