Event-Triggered Adaptive Control of Noncanonical Nonlinear Systems with Hysteresis Inputs

Abstract

Dear Editor, It is well known that event-triggered control (ETC) is an effective approach in addressing networked control problems for Industry 5.0. Its feasibility, however, is still restricted to canonical nonlinear systems so far. Considering this, a gradient-based adaptive ETC scheme for noncanonical nonlinear systems is newly developed in this letter, where the hysteresis input constraints are considered also. By proper decomposition, the technical issue of handling ETC-induced measurement errors and hysteresis inputs can be transformed into the robustness problem to bounded disturbance-like terms, which is then addressed by integrating a switching modification strategy in adaptive design and developing a novel augmented error-based analysis framework. Experimental results based on a practical piezoactuator confirm the effectiveness of the proposed scheme.