SEAT WEIGHT SENSOR HAVING SELF-REGULATING FLUID FILLED BLADDER
A hydrostatic weight sensor (10) incorporates a bladder (15) having a plurality of cells (210) in fluid communication with one another, and with the outlet of a check valve (30), the inlet of which is in fluid communication with a source of sensing fluid, preferably the atmosphere (25). A cell-filli...
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| description | A hydrostatic weight sensor (10) incorporates a bladder (15) having a plurality of cells (210) in fluid communication with one another, and with the outlet of a check valve (30), the inlet of which is in fluid communication with a source of sensing fluid, preferably the atmosphere (25). A cell-filling restoring mechanism (230) is operatively coupled to a portion of the cells of the bladder. When the applied load is removed from the hydrostatic weight sensor (10), the volume of those cells (210) operatively coupled to the cell-filling restoring mechanism (230) is restored, whereupon if the pressure becomes less than the local atmospheric pressure, then fluid is added to the bladder (15) through the check valve (30), thereby restoring lost sensing fluid. A pressure sensor (20) operatively coupled to the bladder generates a signal (22) responsive to the pressure of the sensing fluid within the bladder (15), and a signal processor (50) calculates the weight of the occupant (5) therefrom.
L'invention concerne un capteur (10) de poids hydrostatique constitué d'une vessie (15) comprenant une pluralité de cellules (210) en communication fluidique les unes avec les autres, ainsi qu'avec la sortie d'un clapet anti-retour (30), dont l'entrée est en communication fluidique avec une source de liquide de détection, à savoir de préférence l'atmosphère (25). Un mécanisme (230) de remplissage compensé des cellules est fonctionnellement couplé à une partie des cellules de la vessie. Lorsqu'on retire la charge appliquée du capteur (10) de poids hydrostatique, ces cellules (210), fonctionnellement couplées au mécanisme (230) de remplissage compensé des cellules, retrouvent leur volume initial, alors que si la pression descend en dessous de la pression atmosphérique locale, la vessie (15) reçoit un complément de fluide via le clapet anti-retour (30), compensant ainsi les pertes de fluide de détection. Un capteur de pression (20) fonctionnellement couplé à la vessie produit un signal (22) en réponse à la pression du fluide de détection régnant à l'intérieur de la vessie (15), et un processeur (50) de signal calcule le poids de l'occupant (5) à partir dudit signal. |
| format | Patent |
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L'invention concerne un capteur (10) de poids hydrostatique constitué d'une vessie (15) comprenant une pluralité de cellules (210) en communication fluidique les unes avec les autres, ainsi qu'avec la sortie d'un clapet anti-retour (30), dont l'entrée est en communication fluidique avec une source de liquide de détection, à savoir de préférence l'atmosphère (25). Un mécanisme (230) de remplissage compensé des cellules est fonctionnellement couplé à une partie des cellules de la vessie. Lorsqu'on retire la charge appliquée du capteur (10) de poids hydrostatique, ces cellules (210), fonctionnellement couplées au mécanisme (230) de remplissage compensé des cellules, retrouvent leur volume initial, alors que si la pression descend en dessous de la pression atmosphérique locale, la vessie (15) reçoit un complément de fluide via le clapet anti-retour (30), compensant ainsi les pertes de fluide de détection. Un capteur de pression (20) fonctionnellement couplé à la vessie produit un signal (22) en réponse à la pression du fluide de détection régnant à l'intérieur de la vessie (15), et un processeur (50) de signal calcule le poids de l'occupant (5) à partir dudit signal.</description><edition>6</edition><language>eng ; fre</language><subject>ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES ; AUXILIARY DRIVES FOR VEHICLES ; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES ; MEASURING ; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE ; PERFORMING OPERATIONS ; PHYSICS ; SEATS SPECIALLY ADAPTED FOR VEHICLES ; TESTING ; TRANSPORTING ; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR ; VEHICLES IN GENERAL ; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR ; WEIGHING</subject><creationdate>1999</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=19990311&DB=EPODOC&CC=WO&NR=9911483A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990311&DB=EPODOC&CC=WO&NR=9911483A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DUDA, DONALD, A</creatorcontrib><creatorcontrib>SEWELL, MICHAEL, R</creatorcontrib><title>SEAT WEIGHT SENSOR HAVING SELF-REGULATING FLUID FILLED BLADDER</title><description>A hydrostatic weight sensor (10) incorporates a bladder (15) having a plurality of cells (210) in fluid communication with one another, and with the outlet of a check valve (30), the inlet of which is in fluid communication with a source of sensing fluid, preferably the atmosphere (25). A cell-filling restoring mechanism (230) is operatively coupled to a portion of the cells of the bladder. When the applied load is removed from the hydrostatic weight sensor (10), the volume of those cells (210) operatively coupled to the cell-filling restoring mechanism (230) is restored, whereupon if the pressure becomes less than the local atmospheric pressure, then fluid is added to the bladder (15) through the check valve (30), thereby restoring lost sensing fluid. A pressure sensor (20) operatively coupled to the bladder generates a signal (22) responsive to the pressure of the sensing fluid within the bladder (15), and a signal processor (50) calculates the weight of the occupant (5) therefrom.
L'invention concerne un capteur (10) de poids hydrostatique constitué d'une vessie (15) comprenant une pluralité de cellules (210) en communication fluidique les unes avec les autres, ainsi qu'avec la sortie d'un clapet anti-retour (30), dont l'entrée est en communication fluidique avec une source de liquide de détection, à savoir de préférence l'atmosphère (25). Un mécanisme (230) de remplissage compensé des cellules est fonctionnellement couplé à une partie des cellules de la vessie. Lorsqu'on retire la charge appliquée du capteur (10) de poids hydrostatique, ces cellules (210), fonctionnellement couplées au mécanisme (230) de remplissage compensé des cellules, retrouvent leur volume initial, alors que si la pression descend en dessous de la pression atmosphérique locale, la vessie (15) reçoit un complément de fluide via le clapet anti-retour (30), compensant ainsi les pertes de fluide de détection. Un capteur de pression (20) fonctionnellement couplé à la vessie produit un signal (22) en réponse à la pression du fluide de détection régnant à l'intérieur de la vessie (15), et un processeur (50) de signal calcule le poids de l'occupant (5) à partir dudit signal.</description><subject>ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES</subject><subject>ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES</subject><subject>ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES</subject><subject>AUXILIARY DRIVES FOR VEHICLES</subject><subject>INSTRUMENTATION OR DASHBOARDS FOR VEHICLES</subject><subject>MEASURING</subject><subject>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>SEATS SPECIALLY ADAPTED FOR VEHICLES</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><subject>VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR</subject><subject>VEHICLES IN GENERAL</subject><subject>VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</subject><subject>WEIGHING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLALdnUMUQh39XT3CFEIdvUL9g9S8HAM8_RzB_J83HSDXN1DfRxDQHw3n1BPFwU3Tx8fVxcFJx9HFxfXIB4G1rTEnOJUXijNzaDg5hri7KGbWpAfn1pckJicmpdaEh_ub2lpaGhiYexoaEyEEgD9OSm8</recordid><startdate>19990311</startdate><enddate>19990311</enddate><creator>DUDA, DONALD, A</creator><creator>SEWELL, MICHAEL, R</creator><scope>EVB</scope></search><sort><creationdate>19990311</creationdate><title>SEAT WEIGHT SENSOR HAVING SELF-REGULATING FLUID FILLED BLADDER</title><author>DUDA, DONALD, A ; SEWELL, MICHAEL, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO9911483A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1999</creationdate><topic>ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES</topic><topic>ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES</topic><topic>ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES</topic><topic>AUXILIARY DRIVES FOR VEHICLES</topic><topic>INSTRUMENTATION OR DASHBOARDS FOR VEHICLES</topic><topic>MEASURING</topic><topic>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>SEATS SPECIALLY ADAPTED FOR VEHICLES</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><topic>VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR</topic><topic>VEHICLES IN GENERAL</topic><topic>VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</topic><topic>WEIGHING</topic><toplevel>online_resources</toplevel><creatorcontrib>DUDA, DONALD, A</creatorcontrib><creatorcontrib>SEWELL, MICHAEL, R</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DUDA, DONALD, A</au><au>SEWELL, MICHAEL, R</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SEAT WEIGHT SENSOR HAVING SELF-REGULATING FLUID FILLED BLADDER</title><date>1999-03-11</date><risdate>1999</risdate><abstract>A hydrostatic weight sensor (10) incorporates a bladder (15) having a plurality of cells (210) in fluid communication with one another, and with the outlet of a check valve (30), the inlet of which is in fluid communication with a source of sensing fluid, preferably the atmosphere (25). A cell-filling restoring mechanism (230) is operatively coupled to a portion of the cells of the bladder. When the applied load is removed from the hydrostatic weight sensor (10), the volume of those cells (210) operatively coupled to the cell-filling restoring mechanism (230) is restored, whereupon if the pressure becomes less than the local atmospheric pressure, then fluid is added to the bladder (15) through the check valve (30), thereby restoring lost sensing fluid. A pressure sensor (20) operatively coupled to the bladder generates a signal (22) responsive to the pressure of the sensing fluid within the bladder (15), and a signal processor (50) calculates the weight of the occupant (5) therefrom.
L'invention concerne un capteur (10) de poids hydrostatique constitué d'une vessie (15) comprenant une pluralité de cellules (210) en communication fluidique les unes avec les autres, ainsi qu'avec la sortie d'un clapet anti-retour (30), dont l'entrée est en communication fluidique avec une source de liquide de détection, à savoir de préférence l'atmosphère (25). Un mécanisme (230) de remplissage compensé des cellules est fonctionnellement couplé à une partie des cellules de la vessie. Lorsqu'on retire la charge appliquée du capteur (10) de poids hydrostatique, ces cellules (210), fonctionnellement couplées au mécanisme (230) de remplissage compensé des cellules, retrouvent leur volume initial, alors que si la pression descend en dessous de la pression atmosphérique locale, la vessie (15) reçoit un complément de fluide via le clapet anti-retour (30), compensant ainsi les pertes de fluide de détection. Un capteur de pression (20) fonctionnellement couplé à la vessie produit un signal (22) en réponse à la pression du fluide de détection régnant à l'intérieur de la vessie (15), et un processeur (50) de signal calcule le poids de l'occupant (5) à partir dudit signal.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PERFORMING OPERATIONS PHYSICS SEATS SPECIALLY ADAPTED FOR VEHICLES TESTING TRANSPORTING VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WEIGHING |
| title | SEAT WEIGHT SENSOR HAVING SELF-REGULATING FLUID FILLED BLADDER |
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