{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T20:35:43Z","timestamp":1777926943975,"version":"3.51.4"},"reference-count":29,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2012,7,20]],"date-time":"2012-07-20T00:00:00Z","timestamp":1342742400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"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":[[2012,9]]},"abstract":"<jats:p>This article addresses a robust fault detection and isolation procedure which is applicable for a hybrid system undergoing discrete mode changes. Global analytical redundancy relations, which may undergo change in their structure depending on the switched mode, are derived from the diagnostic hybrid bond graph model of the system. For fault detection and isolation analysis, the residuals, evaluated at every instant from the global analytical redundancy relations, are tested against adaptive thresholds which are changed with mode shift and variation of states, but not changed due to any fault. The parametric uncertainties are included in the diagnostic hybrid bond graph through the linear fractional transformation approach and the adaptive thresholds are obtained from the modified diagnostic hybrid bond graph model. The residuals are made robust in a sense that these would always remain within the upper and lower threshold bound for any perturbation except fault occurrence. For application of the robust fault detection and isolation analysis, a hybrid thermo-fluid system is selected whose behavioural evolution combines both discrete as well as continuous changes of states. It is shown through simulation that with parameter uncertainties in a hybrid system subject to frequent mode shift, robust fault detection and isolation is successfully achieved using the passive approach. The novelty of this work lies in the integration of the model-based diagnosis principle for hybrid systems with the approach for robust residual threshold generation for systems having uncertain parameters.<\/jats:p>","DOI":"10.1177\/0959651812450113","type":"journal-article","created":{"date-parts":[[2012,7,21]],"date-time":"2012-07-21T06:27:16Z","timestamp":1342852036000},"page":"1013-1028","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":13,"title":["Robust fault detection and isolation of hybrid systems with uncertain parameters"],"prefix":"10.1177","volume":"226","author":[{"given":"Sanjoy K","family":"Ghoshal","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering and Mining Machinery Engineering, Indian School of Mines, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Subrata","family":"Samanta","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Asansol Engineering College, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arun K","family":"Samantaray","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Indian Institute of Technology, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2012,7,20]]},"reference":[{"key":"bibr1-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2009.2030213"},{"key":"bibr2-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1109\/TASE.2009.2024538"},{"key":"bibr3-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1109\/TASE.2009.2026731"},{"key":"bibr4-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1016\/S0098-1354(02)00160-6"},{"key":"bibr5-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4471-0349-3"},{"key":"bibr6-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-05344-7"},{"key":"bibr7-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1016\/j.na.2006.02.047"},{"key":"bibr8-0959651812450113","doi-asserted-by":"publisher","DOI":"10.1016\/j.nahs.2007.01.002"},{"key":"bibr9-0959651812450113","first-page":"1125","volume-title":"SAFEPROCESS 2003","author":"Biswas G"},{"key":"bibr10-0959651812450113","first-page":"645","volume-title":"IEEE conference on control applications","author":"Wu J"},{"key":"bibr11-0959651812450113","unstructured":"Mosterman PJ. 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