Modeling and Simulation of a Semi-active Vehicle Suspension system using PID Controller

Abstract

In this article, the numerical simulation of Magneto-rheological (MR) damper has been done using PID controller in Matlab-Simulink software to compare between the regular Macpherson strut and semi active suspension systems. The Magneto-rheological damper is a control device filled with Magneto-rheological fluid which changes damping force by changing property of viscosity on application of magnetic field. The results show that proportional integral derivative (PID) controller used to control damper in semi-active suspension is more efficient to reduce road disturbances than the regular suspension using Macpherson strut. Vehicle chassis displacement and acceleration can be reduced within milliseconds of time.