ENGINE CONTROLLER
To provide an engine controller that when the occurrence of failure due to air-fuel ratio deviation between cylinders continues, even if long-time learning by sub-feedback control accumulates, can correct an air-fuel ratio to a lean side to suppress exhaust gas.SOLUTION: A sub-feedback control means...
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| creator | TAKAHASHI KAZUMICHI KAWACHI YOHEI MATSUNAGA HIDEO |
| description | To provide an engine controller that when the occurrence of failure due to air-fuel ratio deviation between cylinders continues, even if long-time learning by sub-feedback control accumulates, can correct an air-fuel ratio to a lean side to suppress exhaust gas.SOLUTION: A sub-feedback control means 32 adjusts a lean correction value, which is a value of the real-time correction amount at the time of lean correction, in a plurality of steps or steplessly, based on an integrated value of a lean residence time.SELECTED DRAWING: Figure 3
【課題】気筒間空燃比ずれ故障発生が持続した際に、サブフィードバック制御によるロングタイム学習が累積しても、リーン側への補正が可能であるようにして、排出ガスを抑制する。【解決手段】サブフィードバック制御手段３２が、リアルタイム補正量の、リーン補正する際の値であるリーン補正値を、リーン滞留時間の積算値に基づいて複数段階で又は無段階で調整する。【選択図】図３ |
| format | Patent |
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【課題】気筒間空燃比ずれ故障発生が持続した際に、サブフィードバック制御によるロングタイム学習が累積しても、リーン側への補正が可能であるようにして、排出ガスを抑制する。【解決手段】サブフィードバック制御手段３２が、リアルタイム補正量の、リーン補正する際の値であるリーン補正値を、リーン滞留時間の積算値に基づいて複数段階で又は無段階で調整する。【選択図】図３</description><language>eng ; jpn</language><subject>BLASTING ; COMBUSTION ENGINES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>2020</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=20201001&DB=EPODOC&CC=JP&NR=2020159301A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201001&DB=EPODOC&CC=JP&NR=2020159301A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAHASHI KAZUMICHI</creatorcontrib><creatorcontrib>KAWACHI YOHEI</creatorcontrib><creatorcontrib>MATSUNAGA HIDEO</creatorcontrib><title>ENGINE CONTROLLER</title><description>To provide an engine controller that when the occurrence of failure due to air-fuel ratio deviation between cylinders continues, even if long-time learning by sub-feedback control accumulates, can correct an air-fuel ratio to a lean side to suppress exhaust gas.SOLUTION: A sub-feedback control means 32 adjusts a lean correction value, which is a value of the real-time correction amount at the time of lean correction, in a plurality of steps or steplessly, based on an integrated value of a lean residence time.SELECTED DRAWING: Figure 3
【課題】気筒間空燃比ずれ故障発生が持続した際に、サブフィードバック制御によるロングタイム学習が累積しても、リーン側への補正が可能であるようにして、排出ガスを抑制する。【解決手段】サブフィードバック制御手段３２が、リアルタイム補正量の、リーン補正する際の値であるリーン補正値を、リーン滞留時間の積算値に基づいて複数段階で又は無段階で調整する。【選択図】図３</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>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBB09XP39HNVcPb3Cwny9_FxDeJhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRgaGppbGBoaOxkQpAgBdUx40</recordid><startdate>20201001</startdate><enddate>20201001</enddate><creator>TAKAHASHI KAZUMICHI</creator><creator>KAWACHI YOHEI</creator><creator>MATSUNAGA HIDEO</creator><scope>EVB</scope></search><sort><creationdate>20201001</creationdate><title>ENGINE CONTROLLER</title><author>TAKAHASHI KAZUMICHI ; KAWACHI YOHEI ; MATSUNAGA HIDEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020159301A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</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>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHASHI KAZUMICHI</creatorcontrib><creatorcontrib>KAWACHI YOHEI</creatorcontrib><creatorcontrib>MATSUNAGA HIDEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHASHI KAZUMICHI</au><au>KAWACHI YOHEI</au><au>MATSUNAGA HIDEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ENGINE CONTROLLER</title><date>2020-10-01</date><risdate>2020</risdate><abstract>To provide an engine controller that when the occurrence of failure due to air-fuel ratio deviation between cylinders continues, even if long-time learning by sub-feedback control accumulates, can correct an air-fuel ratio to a lean side to suppress exhaust gas.SOLUTION: A sub-feedback control means 32 adjusts a lean correction value, which is a value of the real-time correction amount at the time of lean correction, in a plurality of steps or steplessly, based on an integrated value of a lean residence time.SELECTED DRAWING: Figure 3
【課題】気筒間空燃比ずれ故障発生が持続した際に、サブフィードバック制御によるロングタイム学習が累積しても、リーン側への補正が可能であるようにして、排出ガスを抑制する。【解決手段】サブフィードバック制御手段３２が、リアルタイム補正量の、リーン補正する際の値であるリーン補正値を、リーン滞留時間の積算値に基づいて複数段階で又は無段階で調整する。【選択図】図３</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; jpn |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS |
| title | ENGINE CONTROLLER |
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