A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system
In a fuel injection system of an internal combustion engine, comprising: - a high pressure pump (16, 18) adapted to deliver a fuel mass conveyed from a fuel tank (24) to a high pressure region (12) to which a plurality of injectors (I1-I4) is connected, including a fuel metering device (18) for adju...
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| creator | MAURA, DINTINO ZAMBONI, PAOLO |
| description | In a fuel injection system of an internal combustion engine, comprising:
- a high pressure pump (16, 18) adapted to deliver a fuel mass conveyed from a fuel tank (24) to a high pressure region (12) to which a plurality of injectors (I1-I4) is connected, including a fuel metering device (18) for adjusting the fuel quantity to be delivered to the high pressure region (12),
- a pressure sensor (20) for measuring fuel pressure in the high pressure region (12); and
- an electronic control unit (30) arranged for driving the fuel metering device (18) through an energizing signal (I nom ; I act ) as a function of the measured fuel pressure and the engine operating mode,
where the electronic control unit (30) is arranged for determining the energizing signal (I nom ; I act ) for driving the fuel metering device (18) according to a nominal characteristic curve (A) of the high pressure pump (16, 18) representative of a predetermined relationship between the energizing signal and the fuel mass delivered by the pump (16, 18),
the operating pressure is controlled by driving the fuel metering device (18) with an energizing signal determined according to an updated characteristic curve (B) estimated by applying to the nominal characteristic curve (A) an offset between the actual energizing signal value (I act ) related to the controlled fuel mass delivered to the high pressure region (12) in a predetermined engine operating point and a nominal energizing signal (I nom ) related to the controlled fuel mass according to the nominal characteristic curve (A). |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP2128416A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP2128416A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP2128416A13</originalsourceid><addsrcrecordid>eNqNjDEOgkAQRWksjHqHOYAWoDG2xGAsLezJZBlgyDI72dktuL3GcACr_4r3_rbQGmZKY-gApQNbLNEMfYjggqQYvGcZAGHkYQSNZJYjgeZZj6AYE7vsMfrllyB0TEYeSAYWgj5_mWUilzjIer4vNj16o8O6uwIezfv-PJGGlkzRkVBqm1dVVrdLea3L8x_KB6PQQsc</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system</title><source>esp@cenet</source><creator>MAURA, DINTINO ; ZAMBONI, PAOLO</creator><creatorcontrib>MAURA, DINTINO ; ZAMBONI, PAOLO</creatorcontrib><description>In a fuel injection system of an internal combustion engine, comprising:
- a high pressure pump (16, 18) adapted to deliver a fuel mass conveyed from a fuel tank (24) to a high pressure region (12) to which a plurality of injectors (I1-I4) is connected, including a fuel metering device (18) for adjusting the fuel quantity to be delivered to the high pressure region (12),
- a pressure sensor (20) for measuring fuel pressure in the high pressure region (12); and
- an electronic control unit (30) arranged for driving the fuel metering device (18) through an energizing signal (I nom ; I act ) as a function of the measured fuel pressure and the engine operating mode,
where the electronic control unit (30) is arranged for determining the energizing signal (I nom ; I act ) for driving the fuel metering device (18) according to a nominal characteristic curve (A) of the high pressure pump (16, 18) representative of a predetermined relationship between the energizing signal and the fuel mass delivered by the pump (16, 18),
the operating pressure is controlled by driving the fuel metering device (18) with an energizing signal determined according to an updated characteristic curve (B) estimated by applying to the nominal characteristic curve (A) an offset between the actual energizing signal value (I act ) related to the controlled fuel mass delivered to the high pressure region (12) in a predetermined engine operating point and a nominal energizing signal (I nom ) related to the controlled fuel mass according to the nominal characteristic curve (A).</description><language>eng ; fre ; ger</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>2009</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=20091202&DB=EPODOC&CC=EP&NR=2128416A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20091202&DB=EPODOC&CC=EP&NR=2128416A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MAURA, DINTINO</creatorcontrib><creatorcontrib>ZAMBONI, PAOLO</creatorcontrib><title>A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system</title><description>In a fuel injection system of an internal combustion engine, comprising:
- a high pressure pump (16, 18) adapted to deliver a fuel mass conveyed from a fuel tank (24) to a high pressure region (12) to which a plurality of injectors (I1-I4) is connected, including a fuel metering device (18) for adjusting the fuel quantity to be delivered to the high pressure region (12),
- a pressure sensor (20) for measuring fuel pressure in the high pressure region (12); and
- an electronic control unit (30) arranged for driving the fuel metering device (18) through an energizing signal (I nom ; I act ) as a function of the measured fuel pressure and the engine operating mode,
where the electronic control unit (30) is arranged for determining the energizing signal (I nom ; I act ) for driving the fuel metering device (18) according to a nominal characteristic curve (A) of the high pressure pump (16, 18) representative of a predetermined relationship between the energizing signal and the fuel mass delivered by the pump (16, 18),
the operating pressure is controlled by driving the fuel metering device (18) with an energizing signal determined according to an updated characteristic curve (B) estimated by applying to the nominal characteristic curve (A) an offset between the actual energizing signal value (I act ) related to the controlled fuel mass delivered to the high pressure region (12) in a predetermined engine operating point and a nominal energizing signal (I nom ) related to the controlled fuel mass according to the nominal characteristic curve (A).</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>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjDEOgkAQRWksjHqHOYAWoDG2xGAsLezJZBlgyDI72dktuL3GcACr_4r3_rbQGmZKY-gApQNbLNEMfYjggqQYvGcZAGHkYQSNZJYjgeZZj6AYE7vsMfrllyB0TEYeSAYWgj5_mWUilzjIer4vNj16o8O6uwIezfv-PJGGlkzRkVBqm1dVVrdLea3L8x_KB6PQQsc</recordid><startdate>20091202</startdate><enddate>20091202</enddate><creator>MAURA, DINTINO</creator><creator>ZAMBONI, PAOLO</creator><scope>EVB</scope></search><sort><creationdate>20091202</creationdate><title>A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system</title><author>MAURA, DINTINO ; ZAMBONI, PAOLO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2128416A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2009</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>MAURA, DINTINO</creatorcontrib><creatorcontrib>ZAMBONI, PAOLO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MAURA, DINTINO</au><au>ZAMBONI, PAOLO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system</title><date>2009-12-02</date><risdate>2009</risdate><abstract>In a fuel injection system of an internal combustion engine, comprising:
- a high pressure pump (16, 18) adapted to deliver a fuel mass conveyed from a fuel tank (24) to a high pressure region (12) to which a plurality of injectors (I1-I4) is connected, including a fuel metering device (18) for adjusting the fuel quantity to be delivered to the high pressure region (12),
- a pressure sensor (20) for measuring fuel pressure in the high pressure region (12); and
- an electronic control unit (30) arranged for driving the fuel metering device (18) through an energizing signal (I nom ; I act ) as a function of the measured fuel pressure and the engine operating mode,
where the electronic control unit (30) is arranged for determining the energizing signal (I nom ; I act ) for driving the fuel metering device (18) according to a nominal characteristic curve (A) of the high pressure pump (16, 18) representative of a predetermined relationship between the energizing signal and the fuel mass delivered by the pump (16, 18),
the operating pressure is controlled by driving the fuel metering device (18) with an energizing signal determined according to an updated characteristic curve (B) estimated by applying to the nominal characteristic curve (A) an offset between the actual energizing signal value (I act ) related to the controlled fuel mass delivered to the high pressure region (12) in a predetermined engine operating point and a nominal energizing signal (I nom ) related to the controlled fuel mass according to the nominal characteristic curve (A).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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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 | A method and system for controlling a high pressure pump, particularly for a diesel engine fuel injection system |
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