{"id":"https://openalex.org/W4415180518","doi":"https://doi.org/10.23919/ecc65951.2025.11187263","title":"Continuous-Time System Identification and OCV Reconstruction of Li-ion Batteries via Regularized Least Squares","display_name":"Continuous-Time System Identification and OCV Reconstruction of Li-ion Batteries via Regularized Least Squares","publication_year":2025,"publication_date":"2025-06-24","ids":{"openalex":"https://openalex.org/W4415180518","doi":"https://doi.org/10.23919/ecc65951.2025.11187263"},"language":"en","primary_location":{"id":"doi:10.23919/ecc65951.2025.11187263","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc65951.2025.11187263","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 European Control Conference (ECC)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100781672","display_name":"Yang Wang","orcid":"https://orcid.org/0000-0003-1356-7439"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":true,"raw_author_name":"Yang Wang","raw_affiliation_strings":["Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD"],"affiliations":[{"raw_affiliation_string":"Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063861053","display_name":"Riccardo Ferrari","orcid":"https://orcid.org/0000-0003-3615-5445"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Riccardo M.G. Ferrari","raw_affiliation_strings":["Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD"],"affiliations":[{"raw_affiliation_string":"Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003504954","display_name":"Michel Verhaegen","orcid":"https://orcid.org/0000-0002-7967-6884"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Michel Verhaegen","raw_affiliation_strings":["Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD"],"affiliations":[{"raw_affiliation_string":"Delft University of Technology,Delft Center for Systems and Control,Delft,Netherlands,2628CD","institution_ids":["https://openalex.org/I98358874"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100781672"],"corresponding_institution_ids":["https://openalex.org/I98358874"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.33962951,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2291","last_page":"2296"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10663","display_name":"Advanced Battery Technologies Research","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10663","display_name":"Advanced Battery Technologies Research","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10876","display_name":"Fault Detection and Control Systems","score":0.9873999953269958,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11236","display_name":"Control Systems and Identification","score":0.9732999801635742,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/battery","display_name":"Battery (electricity)","score":0.5907999873161316},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5601000189781189},{"id":"https://openalex.org/keywords/discretization","display_name":"Discretization","score":0.5374000072479248},{"id":"https://openalex.org/keywords/system-identification","display_name":"System identification","score":0.5307000279426575},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.5238000154495239},{"id":"https://openalex.org/keywords/piecewise","display_name":"Piecewise","score":0.5065000057220459},{"id":"https://openalex.org/keywords/least-squares-function-approximation","display_name":"Least-squares function approximation","score":0.4805000126361847},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.4724999964237213},{"id":"https://openalex.org/keywords/recursive-least-squares-filter","display_name":"Recursive least squares filter","score":0.46790000796318054}],"concepts":[{"id":"https://openalex.org/C555008776","wikidata":"https://www.wikidata.org/wiki/Q267298","display_name":"Battery (electricity)","level":3,"score":0.5907999873161316},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5601000189781189},{"id":"https://openalex.org/C73000952","wikidata":"https://www.wikidata.org/wiki/Q17007827","display_name":"Discretization","level":2,"score":0.5374000072479248},{"id":"https://openalex.org/C119247159","wikidata":"https://www.wikidata.org/wiki/Q1366192","display_name":"System identification","level":3,"score":0.5307000279426575},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.5238000154495239},{"id":"https://openalex.org/C164660894","wikidata":"https://www.wikidata.org/wiki/Q2037833","display_name":"Piecewise","level":2,"score":0.5065000057220459},{"id":"https://openalex.org/C9936470","wikidata":"https://www.wikidata.org/wiki/Q6510405","display_name":"Least-squares function approximation","level":3,"score":0.4805000126361847},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.4724999964237213},{"id":"https://openalex.org/C145249878","wikidata":"https://www.wikidata.org/wiki/Q2835868","display_name":"Recursive least squares filter","level":3,"score":0.46790000796318054},{"id":"https://openalex.org/C2776582896","wikidata":"https://www.wikidata.org/wiki/Q5368536","display_name":"State of charge","level":4,"score":0.44769999384880066},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4417000114917755},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.42890000343322754},{"id":"https://openalex.org/C45923927","wikidata":"https://www.wikidata.org/wiki/Q3319230","display_name":"Non-linear least squares","level":3,"score":0.41909998655319214},{"id":"https://openalex.org/C11210021","wikidata":"https://www.wikidata.org/wiki/Q1520713","display_name":"Linearization","level":3,"score":0.3873000144958496},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.36959999799728394},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3610999882221222},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3571999967098236},{"id":"https://openalex.org/C184389593","wikidata":"https://www.wikidata.org/wiki/Q603159","display_name":"Curve fitting","level":2,"score":0.35589998960494995},{"id":"https://openalex.org/C79610928","wikidata":"https://www.wikidata.org/wiki/Q1656743","display_name":"Parameter identification problem","level":3,"score":0.35019999742507935},{"id":"https://openalex.org/C133731056","wikidata":"https://www.wikidata.org/wiki/Q4917288","display_name":"Control engineering","level":1,"score":0.34380000829696655},{"id":"https://openalex.org/C17095337","wikidata":"https://www.wikidata.org/wiki/Q2375229","display_name":"Piecewise linear function","level":2,"score":0.34369999170303345},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.33070001006126404},{"id":"https://openalex.org/C23572009","wikidata":"https://www.wikidata.org/wiki/Q964981","display_name":"Equivalent circuit","level":3,"score":0.31869998574256897},{"id":"https://openalex.org/C164226766","wikidata":"https://www.wikidata.org/wiki/Q7293202","display_name":"Rank (graph theory)","level":2,"score":0.31690001487731934},{"id":"https://openalex.org/C2780580100","wikidata":"https://www.wikidata.org/wiki/Q6927143","display_name":"Moving least squares","level":2,"score":0.31619998812675476},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.30149999260902405},{"id":"https://openalex.org/C2776784348","wikidata":"https://www.wikidata.org/wiki/Q5762595","display_name":"Microgrid","level":3,"score":0.29679998755455017},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.29420000314712524},{"id":"https://openalex.org/C67186912","wikidata":"https://www.wikidata.org/wiki/Q367664","display_name":"Data modeling","level":2,"score":0.2736999988555908},{"id":"https://openalex.org/C2777767291","wikidata":"https://www.wikidata.org/wiki/Q1080291","display_name":"Sizing","level":2,"score":0.25859999656677246}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/ecc65951.2025.11187263","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc65951.2025.11187263","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 European Control Conference (ECC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Accurate":[0],"identification":[1],"of":[2,22,31,46,71,81,85,106,147],"lithium-ion":[3],"(Li-ion)":[4],"battery":[5,13,47,128],"parameters":[6,24,48,129],"is":[7,69],"essential":[8],"for":[9],"managing":[10],"and":[11,25,78,120,130,141],"predicting":[12],"behavior.":[14],"However,":[15],"existing":[16],"discrete-time":[17,63],"methods":[18],"hinder":[19],"the":[20,27,32,44,66,74,79,94,103,107,131,136,145,148],"estimation":[21,45],"physical":[23],"face":[26],"fast-slow":[28],"dynamics":[29],"problem":[30],"battery.":[33],"In":[34],"this":[35],"paper,":[36],"we":[37,101,126],"develop":[38],"a":[39,98,118],"continuous-time":[40,60],"approach":[41],"that":[42],"enables":[43],"directly":[49,134],"from":[50,135],"sampled":[51],"data.":[52,139],"This":[53],"method":[54,68],"avoids":[55],"discretization":[56],"errors":[57],"in":[58],"converting":[59],"models":[61],"into":[62],"ones.":[64],"Moreover,":[65],"developed":[67,149],"capable":[70],"jointly":[72],"identifying":[73],"open-circuit":[75],"voltage":[76],"(OCV)":[77],"state":[80],"charge":[82],"(SOC)":[83],"relation":[84,133],"batteries":[86],"without":[87],"utilizing":[88],"offline":[89],"OCV":[90,108],"tests.":[91],"By":[92,116],"modeling":[93],"OCV-SOC":[95,132],"curve":[96,109],"as":[97],"cubic":[99],"B-spline,":[100],"represent":[102],"piecewise":[104],"nonlinearity":[105],"with":[110],"high":[111],"fidelity,":[112],"facilitating":[113],"its":[114],"estimation.":[115],"solving":[117],"rank":[119],"L1":[121],"regularized":[122],"least":[123],"squares":[124],"problem,":[125],"identify":[127],"battery\u2019s":[137],"dynamic":[138],"Simulated":[140],"real-life":[142],"data":[143],"validate":[144],"effectiveness":[146],"method.":[150]},"counts_by_year":[],"updated_date":"2026-03-07T16:01:11.037858","created_date":"2025-10-15T00:00:00"}
