Observer-based output feedback event-triggered robust control for heterogeneous vehicular platoon systems

In this article, the problem of output feedback robust control for heterogeneous vehicle platoon system (HVPS) is investigated. A novel double-channel event-triggered mechanism is designed to reduce the waste of communication resources and unnecessary data transmissions. A neural network state observer is designed by intermittent output signal to estimate unmeasurable states. The prescribed performance function is used to establish a strong string stability condition. Combining backstepping recursive technique and prescribed performance function with its inverse transformation, observer-based robust adaptive output feedback event-triggered platoon controller is designed, which can ensure the individual stability, string stability, and strong string stability of HVPS. It is proved that all signals are bounded by Lyapunov stability analysis. Finally, the validity of the proposed results is proved by simulation.