Robust control and actuator dynamics compensation for railway vehicles

Control for Railway Vehicles

Automatic Slip Control for Railway Vehicles

In the railway industry, slip control has always been essential due to the low friction between the wheels and the rail. In this master’s thesis we have gathered several slip control methods and evaluated them. These evaluations were performed in Matlab-Simulink on a slip process model of a railway vehicle. The objective with these evaluations were to show advantages and disadvantages with the ...

Advanced Control Strategies for Tilting Railway Vehicles

This paper presents the findings of the first stage of a fundamental study of the tilt control problem. A tilting railway vehicle is described via appropriate modelling and a frequency domain analysis illustrates the problems associated with straightforward feedback control. A Kalman-Bucy filter is developed based on 3 inertial measurements (body lateral acceleration, roll and yaw rate) to prov...

Actuator Fault Compensation Control for Nonlinear Systems

The partial loss of actuator effectiveness is considered for the control of a class of nonlinear processes in the presence of a fault. Not only unmatched uncertainties, but also matched uncertainties are discussed in Lyapunov stability sense. The partial loss of actuator effectiveness is approximated by high order neural networks. Application of the proposed design indicates that the fault comp...

Cascaded Adaptive Control of Ocean Vehicles with Signiicant Actuator Dynamics Dr.ing Ee, M.sc Naval Architecture Assistant Professor Cascaded Adaptive Control of Marine Vehicles with Significant Actuator Dynamics

This paper presents a cascaded adaptive control scheme for marine vehicles where the nonlinear equations of motion include a model of the actuator dynamics. The adaptive controller does not require the parameters of the vehicle dynamics and the actuator time constants known a priori. Both the velocity and position tracking errors are shown to converge to zero by applying Barbb alat's lemma. Fur...