Zhang, XMHan, QLGe, XDing, DNing, BZhang, BL2025-06-262025-06-262025-05-26Science China Information Sciences, ISSN: 1674-733X (Print); 1869-1919 (Online), Springer Science and Business Media LLC, 68(6), 161201-. doi: 10.1007/s11432-024-4437-91674-733X1869-1919http://hdl.handle.net/10292/19394Event-triggered control (ETC) offers an efficient strategy for significantly reducing communication and computation resources in networked systems by triggering control updates only when necessary. This study provides an overview of recent advances in ETC. First, data-driven (or model-free) ETC, which has gained significant attention in recent years, is reviewed for linear systems with and without unknown disturbances. Second, co-design issues are deeply analyzed for both state feedback and dynamic output feedback control. Third, the separation principle is thoroughly examined in the context of event-triggered observer-based output feedback control. Fourth, some insightful discussions are made on the ideal execution property of event-triggered schemes, as well as the modeling of ETC under packet dropouts. Finally, several challenging issues for future research are outlined.Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.http://creativecommons.org/licenses/by/4.0/4007 Control Engineering, Mechatronics and Robotics40 Engineering0804 Data Format0806 Information Systems0899 Other Information and Computing SciencesSoftware Engineering4006 Communications engineering4007 Control engineering, mechatronics and robotics4009 Electronics, sensors and digital hardwareJournal ArticleOpenAccess10.1007/s11432-024-4437-9