The Study Of Fuzzy Controller For Tilting System Of Tilting Train

To speed up passenger trains and decrease journey time are one of the targets of the world railway modernization and also a means to increase competition in transportation market. In our country, many railway lines which were built in mountainous area have heavy gradient and curves with small radius. So it is difficult to improve them and a great amount of cost is needed in the modification of them.The use of tilting trains can raise curving speed effectively, so some countries take advantage of the tilting passenger rolling stock to speed up trains that run on existence lines. The tilting control system of tilting trains is the key of the tilting trains' successful application, whose safety is very important for tilting train to transport normally. The reliability of the titling control system is crucial to the train safety. Considering the fact that the tilting system of the tilting train is working in an uncertain environment and is nonlinear in its internality, a conventional linear control method is hard to perform effectively. Fuzzy control has been widely used in nonlinear control systems in many fields as a novel method. However, there are very few published studies concerning this method used in the control of the locomotive and rolling stock. The Fuzzy control strategies for tilting control system are researched in this thesis.First, the mechatronic titling system's mathematic model was set up. Then the Fuzzy controller, PID controller and Fuzzy adaptive PID controller were designed and analyzed respectively for the tilting systems. The results show that the Fuzzy adaptive PID control method of the titling system is practicable theoretically.