EGR CONTROL METHOD AND EGR DEVICE
[Problem] To be able to reliably detect a reduction in a flow rate of circulated exhaust gas that is associated with secular change and to compensate for the reduction in the flow rate. [Means for Resolution] Whether a distribution property of exhaust gas in an EGR valve (16) for controlling a circu...
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| creator | MATSUDA, Yoichi TATE, Atsushi |
| description | [Problem] To be able to reliably detect a reduction in a flow rate of circulated exhaust gas that is associated with secular change and to compensate for the reduction in the flow rate. [Means for Resolution] Whether a distribution property of exhaust gas in an EGR valve (16) for controlling a circulation amount of the exhaust gas to an intake side of an engine (3) is determined on the basis of whether a clogging rate, which is obtained as a ratio of a flow rate of the exhaust gas at a time when the EGR valve (16) is started to be used to a flow rate of the exhaust gas in the EGR valve (16) at a time when the distribution property is determined. In the case where the clogging rate exceeds a determination threshold, such warning that the distribution property of the exhaust gas falls below a specified standard is made, and a flow rate of circulated exhaust gas is corrected in accordance with a degree of degradation of the distribution property. |
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[Means for Resolution] Whether a distribution property of exhaust gas in an EGR valve (16) for controlling a circulation amount of the exhaust gas to an intake side of an engine (3) is determined on the basis of whether a clogging rate, which is obtained as a ratio of a flow rate of the exhaust gas at a time when the EGR valve (16) is started to be used to a flow rate of the exhaust gas in the EGR valve (16) at a time when the distribution property is determined. In the case where the clogging rate exceeds a determination threshold, such warning that the distribution property of the exhaust gas falls below a specified standard is made, and a flow rate of circulated exhaust gas is corrected in accordance with a degree of degradation of the distribution property.</description><language>eng ; fre ; ger</language><subject>BLASTING ; 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>2019</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=20190306&DB=EPODOC&CC=EP&NR=3112652B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190306&DB=EPODOC&CC=EP&NR=3112652B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MATSUDA, Yoichi</creatorcontrib><creatorcontrib>TATE, Atsushi</creatorcontrib><title>EGR CONTROL METHOD AND EGR DEVICE</title><description>[Problem] To be able to reliably detect a reduction in a flow rate of circulated exhaust gas that is associated with secular change and to compensate for the reduction in the flow rate. [Means for Resolution] Whether a distribution property of exhaust gas in an EGR valve (16) for controlling a circulation amount of the exhaust gas to an intake side of an engine (3) is determined on the basis of whether a clogging rate, which is obtained as a ratio of a flow rate of the exhaust gas at a time when the EGR valve (16) is started to be used to a flow rate of the exhaust gas in the EGR valve (16) at a time when the distribution property is determined. In the case where the clogging rate exceeds a determination threshold, such warning that the distribution property of the exhaust gas falls below a specified standard is made, and a flow rate of circulated exhaust gas is corrected in accordance with a degree of degradation of the distribution property.</description><subject>BLASTING</subject><subject>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>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB0dQ9ScPb3Cwny91HwdQ3x8HdRcPRzUQAJu7iGeTq78jCwpiXmFKfyQmluBgU31xBnD93Ugvz41OKCxOTUvNSSeNcAY0NDIzNTIydDYyKUAACv6CFb</recordid><startdate>20190306</startdate><enddate>20190306</enddate><creator>MATSUDA, Yoichi</creator><creator>TATE, Atsushi</creator><scope>EVB</scope></search><sort><creationdate>20190306</creationdate><title>EGR CONTROL METHOD AND EGR DEVICE</title><author>MATSUDA, Yoichi ; TATE, Atsushi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3112652B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2019</creationdate><topic>BLASTING</topic><topic>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>MATSUDA, Yoichi</creatorcontrib><creatorcontrib>TATE, Atsushi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MATSUDA, Yoichi</au><au>TATE, Atsushi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>EGR CONTROL METHOD AND EGR DEVICE</title><date>2019-03-06</date><risdate>2019</risdate><abstract>[Problem] To be able to reliably detect a reduction in a flow rate of circulated exhaust gas that is associated with secular change and to compensate for the reduction in the flow rate. [Means for Resolution] Whether a distribution property of exhaust gas in an EGR valve (16) for controlling a circulation amount of the exhaust gas to an intake side of an engine (3) is determined on the basis of whether a clogging rate, which is obtained as a ratio of a flow rate of the exhaust gas at a time when the EGR valve (16) is started to be used to a flow rate of the exhaust gas in the EGR valve (16) at a time when the distribution property is determined. In the case where the clogging rate exceeds a determination threshold, such warning that the distribution property of the exhaust gas falls below a specified standard is made, and a flow rate of circulated exhaust gas is corrected in accordance with a degree of degradation of the distribution property.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING 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 | EGR CONTROL METHOD AND EGR DEVICE |
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