Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach
Robustness and fault-tolerance are desirable properties for hydraulic working machines and field robots. In applications where service personnel do not have easy access to the machine, it is important that the machine can continue its operation despite single machinery faults. Digital hydraulics ena...
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| creator | Ersfolk, Johan Ahopelto, Miika Lund, Wictor Wiik, Jonatan Waldén, Marina Linjama, Matti Westerholm, Jan |
| description | Robustness and fault-tolerance are desirable properties for hydraulic working
machines and field robots. In applications where service personnel do not have
easy access to the machine, it is important that the machine can continue its
operation despite single machinery faults. Digital hydraulics enables a design
which is inherently fault-tolerant by having each hydraulic actuator controlled
by a number of parallel on/off valves. The exact state operation of a digital
hydraulic system enables model based diagnostics of the hydraulic components
and the possibility to compensate for identified faults. This paper presents an
approach for identifying faulty valves based on combination of pressure
measurements made during the normal operation of the machine and a mathematical
model describing the flow balance of the hydraulic system. |
| doi_str_mv | 10.48550/arxiv.1803.05644 |
| format | Article |
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machines and field robots. In applications where service personnel do not have
easy access to the machine, it is important that the machine can continue its
operation despite single machinery faults. Digital hydraulics enables a design
which is inherently fault-tolerant by having each hydraulic actuator controlled
by a number of parallel on/off valves. The exact state operation of a digital
hydraulic system enables model based diagnostics of the hydraulic components
and the possibility to compensate for identified faults. This paper presents an
approach for identifying faulty valves based on combination of pressure
measurements made during the normal operation of the machine and a mathematical
model describing the flow balance of the hydraulic system.</description><identifier>DOI: 10.48550/arxiv.1803.05644</identifier><language>eng</language><subject>Computer Science - Systems and Control</subject><creationdate>2018-03</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/1803.05644$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.1803.05644$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Ersfolk, Johan</creatorcontrib><creatorcontrib>Ahopelto, Miika</creatorcontrib><creatorcontrib>Lund, Wictor</creatorcontrib><creatorcontrib>Wiik, Jonatan</creatorcontrib><creatorcontrib>Waldén, Marina</creatorcontrib><creatorcontrib>Linjama, Matti</creatorcontrib><creatorcontrib>Westerholm, Jan</creatorcontrib><title>Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach</title><description>Robustness and fault-tolerance are desirable properties for hydraulic working
machines and field robots. In applications where service personnel do not have
easy access to the machine, it is important that the machine can continue its
operation despite single machinery faults. Digital hydraulics enables a design
which is inherently fault-tolerant by having each hydraulic actuator controlled
by a number of parallel on/off valves. The exact state operation of a digital
hydraulic system enables model based diagnostics of the hydraulic components
and the possibility to compensate for identified faults. This paper presents an
approach for identifying faulty valves based on combination of pressure
measurements made during the normal operation of the machine and a mathematical
model describing the flow balance of the hydraulic system.</description><subject>Computer Science - Systems and Control</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotj7FOwzAURbMwoMIHMPF-ICGJ7cQZS0pppaIuhTV6sZ-LJceJnBDRvycUpnuGqyOdKHrI0oRLIdInDN92TjKZsiQVBee3UXf0znqCLX65Cfaa_GSNVTjZ3kNvYGPPdkIHu4sOy8Uq-EA30wjvo_VnQKj7rl0EGt56TS5-xnFh9Bo2OGG8CXYmD-thCD2qz7voxqAb6f5_V9Fp-3Kqd_Hh-Lqv14cYi5LHsjVtSSQY5RkiZaISqmWqSmVeoJTCiLLVjLOcUBUGNSeeFaySihmOvCzZKnr80157myHYDsOl-e1urt3sBznKU6o</recordid><startdate>20180315</startdate><enddate>20180315</enddate><creator>Ersfolk, Johan</creator><creator>Ahopelto, Miika</creator><creator>Lund, Wictor</creator><creator>Wiik, Jonatan</creator><creator>Waldén, Marina</creator><creator>Linjama, Matti</creator><creator>Westerholm, Jan</creator><scope>AKY</scope><scope>GOX</scope></search><sort><creationdate>20180315</creationdate><title>Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach</title><author>Ersfolk, Johan ; Ahopelto, Miika ; Lund, Wictor ; Wiik, Jonatan ; Waldén, Marina ; Linjama, Matti ; Westerholm, Jan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a674-8bfb7ee53e21aae1595cb3c90826a885f57bd3432eac6fad4e416398c3f4a4773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Computer Science - Systems and Control</topic><toplevel>online_resources</toplevel><creatorcontrib>Ersfolk, Johan</creatorcontrib><creatorcontrib>Ahopelto, Miika</creatorcontrib><creatorcontrib>Lund, Wictor</creatorcontrib><creatorcontrib>Wiik, Jonatan</creatorcontrib><creatorcontrib>Waldén, Marina</creatorcontrib><creatorcontrib>Linjama, Matti</creatorcontrib><creatorcontrib>Westerholm, Jan</creatorcontrib><collection>arXiv Computer Science</collection><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ersfolk, Johan</au><au>Ahopelto, Miika</au><au>Lund, Wictor</au><au>Wiik, Jonatan</au><au>Waldén, Marina</au><au>Linjama, Matti</au><au>Westerholm, Jan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach</atitle><date>2018-03-15</date><risdate>2018</risdate><abstract>Robustness and fault-tolerance are desirable properties for hydraulic working
machines and field robots. In applications where service personnel do not have
easy access to the machine, it is important that the machine can continue its
operation despite single machinery faults. Digital hydraulics enables a design
which is inherently fault-tolerant by having each hydraulic actuator controlled
by a number of parallel on/off valves. The exact state operation of a digital
hydraulic system enables model based diagnostics of the hydraulic components
and the possibility to compensate for identified faults. This paper presents an
approach for identifying faulty valves based on combination of pressure
measurements made during the normal operation of the machine and a mathematical
model describing the flow balance of the hydraulic system.</abstract><doi>10.48550/arxiv.1803.05644</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Computer Science - Systems and Control |
| title | Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach |
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