162553 20251204145007.0 doi 10.1016/j.ejcon.2025.101305 sideral 145096 ART-2025-145096 eng Serrano-Seco, Eloy Universidad de Zaragoza (orcid)0000-0002-7646-9863 A hybrid algorithm for iterative adaptation of feedforward controllers: An application on electromechanical switches 2025 Access copy available to the general public Unrestricted Electromechanical switching devices such as relays, solenoid valves, and contactors offer several technical and economic advantages that make them widely used in industry. However, uncontrolled operations result in undesirable impact-related phenomena at the end of the stroke. As a solution, different soft-landing controls have been proposed. Among them, feedforward control with iterative techniques that adapt its parameters is a solution when real-time feedback is not available. However, these techniques typically require a large number of operations to converge or are computationally intensive, which limits a real implementation. In this paper, we present a new algorithm for the iterative adaptation that is able to eventually adapt the search coordinate system and to reduce the search dimensional size in order to accelerate convergence. Moreover, it automatically toggles between a derivative-free and a gradient-based method to balance exploration and exploitation. To demonstrate the high potential of the proposal, each novel part of the algorithm is compared with a state-of-the-art approach via simulation. info:eu-repo/grantAgreement/EUR/AEI/CPP2021-008938 info:eu-repo/grantAgreement/EUR/AEI/TED2021-130224B-I00 info:eu-repo/grantAgreement/ES/DGA/T45-23R info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2021-124137OB-I00 info:eu-repo/grantAgreement/ES/UZ/JIUZ2023-IA-07 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Moya-Lasheras, Eduardo Universidad de Zaragoza (orcid)0000-0001-6244-3366 Ramirez-Laboreo, Edgar Universidad de Zaragoza (orcid)0000-0002-8977-5296 5007 520 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Ingen.Sistemas y Automát. 86, A (2025), e101305 [7 pp.] Eur j. control EUROPEAN JOURNAL OF CONTROL 0947-3580 1194908 http://zaguan.unizar.es/record/162553/files/texto_completo.pdf Versión publicada 2811816 http://zaguan.unizar.es/record/162553/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:162553 articulos driver 2025-12-04-14:45:24 ARTICLE