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First, state reconstruction for Euler-Lagrange systems is conducted, and an interval observer is designed through coordinate transformation. Then, a dynamic event-triggered controller is constructed to ensure the ultimate boundedness of the system while avoiding Zeno behavior. Finally, the effectiveness of the proposed interval observer and controller is demonstrated using a 2-DOF manipulator model.<\/jats:p>","DOI":"10.1177\/09596518251392637","type":"journal-article","created":{"date-parts":[[2025,11,28]],"date-time":"2025-11-28T09:54:46Z","timestamp":1764323686000},"page":"512-521","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Design of dynamic event-triggered controller based on interval observer for Euler-Lagrange systems"],"prefix":"10.1177","volume":"240","author":[{"given":"Mingyi","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1389-5128","authenticated-orcid":false,"given":"Jun","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu, China"}]},{"given":"Yuan","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu, China"}]},{"given":"Junchao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu, China"}]}],"member":"179","published-online":{"date-parts":[[2025,11,28]]},"reference":[{"issue":"3","key":"e_1_3_2_2_2","first-page":"330","article-title":"On nonlinear disturbance observer based tracking control for Euler-Lagrange systems","volume":"3","author":"Smadi IA","year":"2009","unstructured":"Smadi IA, Fujimoto Y. 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