ABSTRACT

ABSTRACT: This paper primarily examined the key issue of a re-configuration control (RC) as an important part of the fault-tolerant control strategy through an analytical redundancy approach for actively controlled railway wheelsets in the event of actuator failure. This study demonstrates the development of the RC through the remaining actuator by adjusting the structure and the controller gains according to the type and location of the actuator fault(s) in order to maintain the vehicle stability and desired performance on a curved track. It will be shown that due to the reduction of the number of control inputs a compromise should be made among the actuation requirements, the vehicle stability, and the desired curving performance. Computer simulation results will be provided in order to assess the proposed control strategy.