Abstract
In this study, we present a control framework based on event-triggered dynamic gains for nonlinear systems, aimed at improving performance in the presence of external disturbances. The constantfeedback gains commonly used in the literature are replaced with dynamic gains. An event-triggered mechanism is developed to initiate the growth of these dynamic gains. When the state's variations exceed a predetermined threshold, the dynamic gains will increase at a specific rate during the subsequent interval. For any predetermined threshold, it is rigorously proven that these dynamic gains experience a finite number of growth intervals, leading the state to converge within this threshold in finite time. Then, the event-triggered dynamic gains are integrated into the fault-tolerant control scheme, enabling the state to converge into a prescribed neighborhood of zero without requiring prior knowledge of actuator faults and external disturbances. Finally, two numerical examples illustrate the effectiveness and innovation of the proposed scheme.
| Original language | English |
|---|---|
| Number of pages | 8 |
| Journal | IEEE Transactions on Automatic Control |
| DOIs | |
| Publication status | E-pub ahead of print - 12 Jan 2026 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 1963-2012 IEEE.
Funding
This work was supported in part by the National Natural Science Foundation of China under Grant 62173155, Grant U25A6013, and Grant 52188102; in part by the Program for Huazhong University of Science and Technology (HUST) Academic Frontier Youth Team; and in part by the Taihu Lake Innovation Fund for Future Technology, HUST
Keywords
- Event-triggered dynamic gains
- fault-tolerant control
- input-to-state stability
- nonlinear systems control