Model based rail pressure control for variable displacement pumps
A method of controlling a hydraulic system is preferably applied to common rail fuel injection systems. The problem in these systems is to control pressure in the common rail while at the same time maintaining the fluid supply to the rail in a way that precisely meets the dynamically changing consum...
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| creator | EL DARAZI DENIS LU MEIXING MATTA GEORGE M LUKICH MICHAEL S MILAM DAVID BARNES TRAVIS E HANDLY DOUGLAS E WARTICK NOLAN W |
| description | A method of controlling a hydraulic system is preferably applied to common rail fuel injection systems. The problem in these systems is to control pressure in the common rail while at the same time maintaining the fluid supply to the rail in a way that precisely meets the dynamically changing consumption demands on the hydraulic system. In order to control the hydraulic system, the present invention contemplates the combination of a standard feedback controller with observer models of the various hardware items that make up the hydraulic system. Using this strategy, the system can generally be thought of as controlling fluid supply in an open loop type fashion based upon the consumption rates estimated by the various observer models, and utilizing a conventional feedback controller to make the slight pump adjustments needed to control pressure and to correct for any errors between the actual hardware performance and that predicted by the observer models. |
| format | Patent |
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The problem in these systems is to control pressure in the common rail while at the same time maintaining the fluid supply to the rail in a way that precisely meets the dynamically changing consumption demands on the hydraulic system. In order to control the hydraulic system, the present invention contemplates the combination of a standard feedback controller with observer models of the various hardware items that make up the hydraulic system. Using this strategy, the system can generally be thought of as controlling fluid supply in an open loop type fashion based upon the consumption rates estimated by the various observer models, and utilizing a conventional feedback controller to make the slight pump adjustments needed to control pressure and to correct for any errors between the actual hardware performance and that predicted by the observer models.</description><edition>7</edition><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; WEAPONS</subject><creationdate>2002</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=20021126&DB=EPODOC&CC=US&NR=6484696B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021126&DB=EPODOC&CC=US&NR=6484696B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>EL DARAZI DENIS</creatorcontrib><creatorcontrib>LU MEIXING</creatorcontrib><creatorcontrib>MATTA GEORGE M</creatorcontrib><creatorcontrib>LUKICH MICHAEL S</creatorcontrib><creatorcontrib>MILAM DAVID</creatorcontrib><creatorcontrib>BARNES TRAVIS E</creatorcontrib><creatorcontrib>HANDLY DOUGLAS E</creatorcontrib><creatorcontrib>WARTICK NOLAN W</creatorcontrib><title>Model based rail pressure control for variable displacement pumps</title><description>A method of controlling a hydraulic system is preferably applied to common rail fuel injection systems. The problem in these systems is to control pressure in the common rail while at the same time maintaining the fluid supply to the rail in a way that precisely meets the dynamically changing consumption demands on the hydraulic system. In order to control the hydraulic system, the present invention contemplates the combination of a standard feedback controller with observer models of the various hardware items that make up the hydraulic system. Using this strategy, the system can generally be thought of as controlling fluid supply in an open loop type fashion based upon the consumption rates estimated by the various observer models, and utilizing a conventional feedback controller to make the slight pump adjustments needed to control pressure and to correct for any errors between the actual hardware performance and that predicted by the observer models.</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>CONTROLLING COMBUSTION ENGINES</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjEOwjAMAMAsDAj4gz_AAlUEI0UgFiZgrtzGlSK5sWWnvB8GHsB0yy3D6S6JGHp0SmCYGdTIfTaCQUo1YRjF4I2WsWeClF0ZB5qoVNB5Ul-HxYjstPm5CnC9PM-3Lal05PrNhWr3esTm0MRjbHf7P8oHwxMx3Q</recordid><startdate>20021126</startdate><enddate>20021126</enddate><creator>EL DARAZI DENIS</creator><creator>LU MEIXING</creator><creator>MATTA GEORGE M</creator><creator>LUKICH MICHAEL S</creator><creator>MILAM DAVID</creator><creator>BARNES TRAVIS E</creator><creator>HANDLY DOUGLAS E</creator><creator>WARTICK NOLAN W</creator><scope>EVB</scope></search><sort><creationdate>20021126</creationdate><title>Model based rail pressure control for variable displacement pumps</title><author>EL DARAZI DENIS ; LU MEIXING ; MATTA GEORGE M ; LUKICH MICHAEL S ; MILAM DAVID ; BARNES TRAVIS E ; HANDLY DOUGLAS E ; WARTICK NOLAN W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6484696B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>CONTROLLING COMBUSTION ENGINES</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>EL DARAZI DENIS</creatorcontrib><creatorcontrib>LU MEIXING</creatorcontrib><creatorcontrib>MATTA GEORGE M</creatorcontrib><creatorcontrib>LUKICH MICHAEL S</creatorcontrib><creatorcontrib>MILAM DAVID</creatorcontrib><creatorcontrib>BARNES TRAVIS E</creatorcontrib><creatorcontrib>HANDLY DOUGLAS E</creatorcontrib><creatorcontrib>WARTICK NOLAN W</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>EL DARAZI DENIS</au><au>LU MEIXING</au><au>MATTA GEORGE M</au><au>LUKICH MICHAEL S</au><au>MILAM DAVID</au><au>BARNES TRAVIS E</au><au>HANDLY DOUGLAS E</au><au>WARTICK NOLAN W</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Model based rail pressure control for variable displacement pumps</title><date>2002-11-26</date><risdate>2002</risdate><abstract>A method of controlling a hydraulic system is preferably applied to common rail fuel injection systems. The problem in these systems is to control pressure in the common rail while at the same time maintaining the fluid supply to the rail in a way that precisely meets the dynamically changing consumption demands on the hydraulic system. In order to control the hydraulic system, the present invention contemplates the combination of a standard feedback controller with observer models of the various hardware items that make up the hydraulic system. Using this strategy, the system can generally be thought of as controlling fluid supply in an open loop type fashion based upon the consumption rates estimated by the various observer models, and utilizing a conventional feedback controller to make the slight pump adjustments needed to control pressure and to correct for any errors between the actual hardware performance and that predicted by the observer models.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS |
| title | Model based rail pressure control for variable displacement pumps |
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