{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/86091"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/86091","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Programmable electrohydraulic valve","abstract":"\"Inferred flow feedback was a new concept in which the internal pressure measurements from the programmable valve could be used to calculate a flow through any of the cartridge valves, thus eliminating the need for external feedback devices in the hydraulic system: a \"\"smart\"\" valve. Hardware limitations in the prototype prevented successful demonstration of this idea. Data acquisition hardware and software incompatibilities caused a loss of response speed in the control system, and flow forces in the cartridge valves caused problems with flow capacity in the hydraulic system and saturation of control inputs to the cartridge valves. Recommendations for further work were provided.\"","abstract_html":""Inferred flow feedback was a new concept in which the internal pressure measurements from the programmable valve could be used to calculate a flow through any of the cartridge valves, thus eliminating the need for external feedback devices in the hydraulic system: a ""smart"" valve. Hardware limitations in the prototype prevented successful demonstration of this idea. Data acquisition hardware and software incompatibilities caused a loss of response speed in the control system, and flow forces in the cartridge valves caused problems with flow capacity in the hydraulic system and saturation of control inputs to the cartridge valves. Recommendations for further work were provided."","abstract_has_math":false,"creators":["Book, Ruth Schoedel"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Agricultural Engineering","degree_department":null,"school":null,"contributors":["Goering, Carroll E."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T14:53:55Z","date_published":"2015-09-28T14:53:55Z","updated_at":"2026-07-22T22:26:26Z","subjects":["Engineering, Mechanical"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9912198"],"render_values":[{"text":"(MiAaPQ)AAI9912198","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/86091","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Goering, Carroll E."]},{"key":"dc:creator","label":"Author","values":["Book, Ruth Schoedel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-28T14:53:55Z","10000-01-01","1998"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Agricultural Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Mechanical"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/86091","(MiAaPQ)AAI9912198"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["\"Inferred flow feedback was a new concept in which the internal pressure measurements from the programmable valve could be used to calculate a flow through any of the cartridge valves, thus eliminating the need for external feedback devices in the hydraulic system: a \"\"smart\"\" valve. Hardware limitations in the prototype prevented successful demonstration of this idea. Data acquisition hardware and software incompatibilities caused a loss of response speed in the control system, and flow forces in the cartridge valves caused problems with flow capacity in the hydraulic system and saturation of control inputs to the cartridge valves. Recommendations for further work were provided.\"","Made available in DSpace on 2015-09-28T14:53:55Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9912198.pdf: 5600000 bytes, checksum: a81ac5e31a69753815b6976bf218d8bc (MD5) Previous issue date: 1998","Embargo set by: Seth Robbins for item 87372 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","135 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998."]},{"key":"dc:title","label":"Title","values":["Programmable electrohydraulic valve"]}]}],"canonical_facts":{"dc:contributor":["Goering, Carroll E."],"dc:creator":["Book, Ruth Schoedel"],"dc:date":["2015-09-28T14:53:55Z","10000-01-01","1998"],"dc:description":["\"Inferred flow feedback was a new concept in which the internal pressure measurements from the programmable valve could be used to calculate a flow through any of the cartridge valves, thus eliminating the need for external feedback devices in the hydraulic system: a \"\"smart\"\" valve. Hardware limitations in the prototype prevented successful demonstration of this idea. Data acquisition hardware and software incompatibilities caused a loss of response speed in the control system, and flow forces in the cartridge valves caused problems with flow capacity in the hydraulic system and saturation of control inputs to the cartridge valves. Recommendations for further work were provided.\"","Made available in DSpace on 2015-09-28T14:53:55Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9912198.pdf: 5600000 bytes, checksum: a81ac5e31a69753815b6976bf218d8bc (MD5) Previous issue date: 1998","Embargo set by: Seth Robbins for item 87372 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","135 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998."],"dc:identifier":["http://hdl.handle.net/2142/86091","(MiAaPQ)AAI9912198"],"dc:language":["eng"],"dc:subject":["Engineering, Mechanical"],"dc:title":["Programmable electrohydraulic valve"],"dc:type":["text"],"thesis:degree_discipline":["Agricultural Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:26Z"}