Semi-active Control of high-speed trains based on fuzzy PID control

Abstract

Establishing the 1/4 vehicle mathematical model based on the nonlinear model of semi-active suspension system for high speed trains, the PID controller and the fuzzy adaptive PID controller were set up respectively on the semi-active suspension system, and the simulations of the high-speed train were carried out under the condition of passive suspension and the semi-active suspension based on the algorithm of the fuzzy adaptive PID control to compare the stability of the high-speed vehicle under these two cases. Results of the simulation show that: the stability and the comfortableness of the high-speed can be improved effectively by using the semi-active suspension with fuzzy adaptive PID control method. © 2011 Published by Elsevier Ltd.