{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T20:41:51Z","timestamp":1777927311144,"version":"3.51.4"},"reference-count":22,"publisher":"SAGE Publications","issue":"7","license":[{"start":{"date-parts":[[2020,12,20]],"date-time":"2020-12-20T00:00:00Z","timestamp":1608422400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51975275"],"award-info":[{"award-number":["51975275"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission","award":["HTL-A-20G02"],"award-info":[{"award-number":["HTL-A-20G02"]}]},{"name":"Postgraduate Research & Practice Innovation Program of Jiangsu Province","award":["KYCX20_0178"],"award-info":[{"award-number":["KYCX20_0178"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:p>This article focuses on accurate identification of the critical moving characteristics of the high speed on\/off valve. Typically, there are two strategies for identifying the critical moving characteristics, including calculation strategy based on force balance and strategy for detecting the coil current\u2019s certain points. However, the accuracy of the two above strategies needs to be improved. Therefore, to improve the identification accuracy of the high speed on\/off valve\u2019s critical moving characteristics, an identification strategy for detecting the time derivative of the coil current is proposed. First, a mathematical model of the high speed on\/off valve (including electromagnetic sub-model and mechanical-fluid sub-model) is established. And on this basis, relationship between the coil current\u2019s derivative and the valve\u2019s critical moving characteristics is analyzed which reveals the changing rule of the coil current\u2019s derivative causing by the ball valve\u2019s moving. Finally, the changing rule of the coil current\u2019s derivative is verified by the comparative simulations and experiments, which also indicate that, with the proposed identification strategy, the maximum identification error of the critical opening\/closing time is only within 6%, and the maximum identification error of the total opening\/closing time is still small (2.9%), compared to other identification strategies in the previous literatures.<\/jats:p>","DOI":"10.1177\/0959651820979086","type":"journal-article","created":{"date-parts":[[2020,12,21]],"date-time":"2020-12-21T02:03:39Z","timestamp":1608516219000},"page":"1084-1099","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Identification of critical moving characteristics in high speed on\/off valve based on time derivative of the coil current"],"prefix":"10.1177","volume":"235","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9318-4501","authenticated-orcid":false,"given":"Qiang","family":"Gao","sequence":"first","affiliation":[{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7399-1656","authenticated-orcid":false,"given":"Yuchuan","family":"Zhu","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Changwen","family":"Wu","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yulei","family":"Jiang","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2020,12,20]]},"reference":[{"key":"bibr1-0959651820979086","volume-title":"Proceedings of the eighth Scandinavian international conference on fluid power","author":"Laamanen 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