Adaptive Fault-Tolerant Control for Time-Varying Failure in High-Speed Train Computer Systems

We investigate a novel adaptive fault-tolerant control method for time-varying failure in high-speed train computer systems and propose a fault model for such systems. First, the dynamics of high-speed train systems are analyzed and a multiple point-mass model is developed. When actuator outputs deviate from the expected value, a novel adaptive fault-tolerant control method based on Lyapunov stable theory is automatically implemented to compensate for the unknown fault effects and ensure system stability and performance. The effectiveness of the proposed approach is also confirmed through numerical simulations by using a train model similar to China Railways Highspeed 5.