WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS
In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick positio...
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| creator | Christofferson, Craig Meyer, Christopher J Vandegrift, Alex R Franck, Kenneth Velde, Todd F Kenkel, Aaron R Anderson, Mark D Sherlock, Lance R |
| description | In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor movement of the joystick relative to the base housing. The MRF joystick resistance mechanism is controllable to vary a first joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. The controller architecture is configured to: (i) detect when unintended joystick motion conditions occur during operation of the work vehicle; and (ii) when detecting unintended joystick motion conditions, command the MRF joystick resistance mechanism to increase the first joystick stiffness in a manner reducing susceptibility of the joystick device to unintended joystick motions. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2021341032A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2021341032A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2021341032A13</originalsourceid><addsrcrecordid>eNqNyrEKwjAQANAuDqL-w4Gz0KT-QEmuydk0B02iiEMpEifRQv1_dHBwdHrLWxaXE_ctHNGScghdbTxG7i2yY0OqdtC4RBoOfA6RVAvhI3YBetRJkTeQPPmIXuNP6jgS-7AuFrfxPufN11WxbTAqu8vTc8jzNF7zI7-GFGQpRbUXZSVrUf233q1kM6U</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS</title><source>esp@cenet</source><creator>Christofferson, Craig ; Meyer, Christopher J ; Vandegrift, Alex R ; Franck, Kenneth ; Velde, Todd F ; Kenkel, Aaron R ; Anderson, Mark D ; Sherlock, Lance R</creator><creatorcontrib>Christofferson, Craig ; Meyer, Christopher J ; Vandegrift, Alex R ; Franck, Kenneth ; Velde, Todd F ; Kenkel, Aaron R ; Anderson, Mark D ; Sherlock, Lance R</creatorcontrib><description>In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor movement of the joystick relative to the base housing. The MRF joystick resistance mechanism is controllable to vary a first joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. The controller architecture is configured to: (i) detect when unintended joystick motion conditions occur during operation of the work vehicle; and (ii) when detecting unintended joystick motion conditions, command the MRF joystick resistance mechanism to increase the first joystick stiffness in a manner reducing susceptibility of the joystick device to unintended joystick motions.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; BLASTING ; DREDGING ; ELECTRICITY ; ENGINEERING ELEMENTS AND UNITS ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; HYDRAULIC ENGINEERING ; INDUCTANCES ; LIGHTING ; MAGNETS ; MEANS FOR DAMPING VIBRATION ; MECHANICAL ENGINEERING ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; SHOCK-ABSORBERS ; SOIL SHIFTING ; SPRINGS ; THERMAL INSULATION IN GENERAL ; TRANSFORMERS ; WEAPONS</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211104&DB=EPODOC&CC=US&NR=2021341032A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211104&DB=EPODOC&CC=US&NR=2021341032A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Christofferson, Craig</creatorcontrib><creatorcontrib>Meyer, Christopher J</creatorcontrib><creatorcontrib>Vandegrift, Alex R</creatorcontrib><creatorcontrib>Franck, Kenneth</creatorcontrib><creatorcontrib>Velde, Todd F</creatorcontrib><creatorcontrib>Kenkel, Aaron R</creatorcontrib><creatorcontrib>Anderson, Mark D</creatorcontrib><creatorcontrib>Sherlock, Lance R</creatorcontrib><title>WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS</title><description>In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor movement of the joystick relative to the base housing. The MRF joystick resistance mechanism is controllable to vary a first joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. The controller architecture is configured to: (i) detect when unintended joystick motion conditions occur during operation of the work vehicle; and (ii) when detecting unintended joystick motion conditions, command the MRF joystick resistance mechanism to increase the first joystick stiffness in a manner reducing susceptibility of the joystick device to unintended joystick motions.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>BLASTING</subject><subject>DREDGING</subject><subject>ELECTRICITY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FOUNDATIONS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>HYDRAULIC ENGINEERING</subject><subject>INDUCTANCES</subject><subject>LIGHTING</subject><subject>MAGNETS</subject><subject>MEANS FOR DAMPING VIBRATION</subject><subject>MECHANICAL ENGINEERING</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>SHOCK-ABSORBERS</subject><subject>SOIL SHIFTING</subject><subject>SPRINGS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRANSFORMERS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQANAuDqL-w4Gz0KT-QEmuydk0B02iiEMpEifRQv1_dHBwdHrLWxaXE_ctHNGScghdbTxG7i2yY0OqdtC4RBoOfA6RVAvhI3YBetRJkTeQPPmIXuNP6jgS-7AuFrfxPufN11WxbTAqu8vTc8jzNF7zI7-GFGQpRbUXZSVrUf233q1kM6U</recordid><startdate>20211104</startdate><enddate>20211104</enddate><creator>Christofferson, Craig</creator><creator>Meyer, Christopher J</creator><creator>Vandegrift, Alex R</creator><creator>Franck, Kenneth</creator><creator>Velde, Todd F</creator><creator>Kenkel, Aaron R</creator><creator>Anderson, Mark D</creator><creator>Sherlock, Lance R</creator><scope>EVB</scope></search><sort><creationdate>20211104</creationdate><title>WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS</title><author>Christofferson, Craig ; Meyer, Christopher J ; Vandegrift, Alex R ; Franck, Kenneth ; Velde, Todd F ; Kenkel, Aaron R ; Anderson, Mark D ; Sherlock, Lance R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2021341032A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2021</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>BLASTING</topic><topic>DREDGING</topic><topic>ELECTRICITY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FOUNDATIONS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>HYDRAULIC ENGINEERING</topic><topic>INDUCTANCES</topic><topic>LIGHTING</topic><topic>MAGNETS</topic><topic>MEANS FOR DAMPING VIBRATION</topic><topic>MECHANICAL ENGINEERING</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>SHOCK-ABSORBERS</topic><topic>SOIL SHIFTING</topic><topic>SPRINGS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRANSFORMERS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>Christofferson, Craig</creatorcontrib><creatorcontrib>Meyer, Christopher J</creatorcontrib><creatorcontrib>Vandegrift, Alex R</creatorcontrib><creatorcontrib>Franck, Kenneth</creatorcontrib><creatorcontrib>Velde, Todd F</creatorcontrib><creatorcontrib>Kenkel, Aaron R</creatorcontrib><creatorcontrib>Anderson, Mark D</creatorcontrib><creatorcontrib>Sherlock, Lance R</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Christofferson, Craig</au><au>Meyer, Christopher J</au><au>Vandegrift, Alex R</au><au>Franck, Kenneth</au><au>Velde, Todd F</au><au>Kenkel, Aaron R</au><au>Anderson, Mark D</au><au>Sherlock, Lance R</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS</title><date>2021-11-04</date><risdate>2021</risdate><abstract>In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor movement of the joystick relative to the base housing. The MRF joystick resistance mechanism is controllable to vary a first joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. The controller architecture is configured to: (i) detect when unintended joystick motion conditions occur during operation of the work vehicle; and (ii) when detecting unintended joystick motion conditions, command the MRF joystick resistance mechanism to increase the first joystick stiffness in a manner reducing susceptibility of the joystick device to unintended joystick motions.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS BLASTING DREDGING ELECTRICITY ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FOUNDATIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING INDUCTANCES LIGHTING MAGNETS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SHOCK-ABSORBERS SOIL SHIFTING SPRINGS THERMAL INSULATION IN GENERAL TRANSFORMERS WEAPONS |
| title | WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS |
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