Mechatronic Rail Vehicle Design Based on the Passenger Comfort

This paper deals with the mechatronic design of the rail vehicle (MRV) in order to improve the passenger comfort. The quarter rail vehicle system dynamic model is presented. The real characteristic of the actuator are discussed and its controller is designed. A mechatronic model that expresses the controlled tracking error as function of the vehicle dynamics and the actuator characteristics is developed. This model is used by the LQR approach to identify the MRV controller gains. The MRV comfort is evaluated in terms of the passenger displacement, acceleration and frequency as a response of a rail discontinuity and rail leveling defaults. The obtained results prove that the MRV improve significantly the passenger comfort.

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