Adaptive fuzzy predefined-time fault-tolerant control for third-order heterogeneous vehicular platoon systems

This article investigates an adaptive fuzzy predefined-time fault-tolerant control problem for third-order heterogeneous vehicular platoon systems (HVPS) with actuator faults. For the purpose of approximating the unknown nonlinear functions, fuzzy logic systems (FLSs) are used. Because the maximum acceleration changes as a result of actuator faults, a quadratic spacing strategy including fault factor is considered. A predefined-time fault-tolerant controller is designed to address the impact of actuator faults. The proposed method makes use of the non-singular terminal sliding mode control (SMC) approach and predefined time stability criterion. Individual vehicle stability, string stability (SS), and traffic flow stability are all guaranteed in a predefined time. Finally, simulations illustrate the usefulness of the given results.