DEVICE FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL COMBUSTION ENGINE
PURPOSE:To prevent the generation of the odor of catalyst exhaust by correcting an air-fuel ratio feedback control constant to be an over-rich side at the time of the nonactive condition of a lower course side air-fuel ratio detecting means, while preventing the effect of the over-rich side correcti...
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| creator | SUEMATSU TOSHIO KANBARA TATSUYOSHI SUGINO TADASHI |
| description | PURPOSE:To prevent the generation of the odor of catalyst exhaust by correcting an air-fuel ratio feedback control constant to be an over-rich side at the time of the nonactive condition of a lower course side air-fuel ratio detecting means, while preventing the effect of the over-rich side correction to the control constant after the time corresponding to the executing condition of the air-fuel ratio feedback control after the correction. CONSTITUTION:When a lower course side air-fuel ratio detecting means M4 is judged to be in a nonactive condition by a judging means M5, a control constant setting means M9 corrects an air-fuel ratio feedback control constant used by an air-fuel ratio feedback control means M7 to be an over-rich side based on a control constant which is calculated by a control constant calculating means M6 at the time corresponding to an air-fuel ratio feedback control executing condition. When a defined time elapsed after the start of calculation of the air-fuel ratio feedback control constant by the means M6 in accordance with the judgment of corresponding to the defined air-fuel ratio feedback control executing condition by the judging means M5, a renewing means M10 makes the means M9 start to renew the air-fuel ratio feedback control constant to suppress the over-rich of air-fuel ratio. |
| format | Patent |
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CONSTITUTION:When a lower course side air-fuel ratio detecting means M4 is judged to be in a nonactive condition by a judging means M5, a control constant setting means M9 corrects an air-fuel ratio feedback control constant used by an air-fuel ratio feedback control means M7 to be an over-rich side based on a control constant which is calculated by a control constant calculating means M6 at the time corresponding to an air-fuel ratio feedback control executing condition. When a defined time elapsed after the start of calculation of the air-fuel ratio feedback control constant by the means M6 in accordance with the judgment of corresponding to the defined air-fuel ratio feedback control executing condition by the judging means M5, a renewing means M10 makes the means M9 start to renew the air-fuel ratio feedback control constant to suppress the over-rich of air-fuel ratio.</description><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>1990</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=19900129&DB=EPODOC&CC=JP&NR=H0227138A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900129&DB=EPODOC&CC=JP&NR=H0227138A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUEMATSU TOSHIO</creatorcontrib><creatorcontrib>KANBARA TATSUYOSHI</creatorcontrib><creatorcontrib>SUGINO TADASHI</creatorcontrib><title>DEVICE FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL COMBUSTION ENGINE</title><description>PURPOSE:To prevent the generation of the odor of catalyst exhaust by correcting an air-fuel ratio feedback control constant to be an over-rich side at the time of the nonactive condition of a lower course side air-fuel ratio detecting means, while preventing the effect of the over-rich side correction to the control constant after the time corresponding to the executing condition of the air-fuel ratio feedback control after the correction. CONSTITUTION:When a lower course side air-fuel ratio detecting means M4 is judged to be in a nonactive condition by a judging means M5, a control constant setting means M9 corrects an air-fuel ratio feedback control constant used by an air-fuel ratio feedback control means M7 to be an over-rich side based on a control constant which is calculated by a control constant calculating means M6 at the time corresponding to an air-fuel ratio feedback control executing condition. When a defined time elapsed after the start of calculation of the air-fuel ratio feedback control constant by the means M6 in accordance with the judgment of corresponding to the defined air-fuel ratio feedback control executing condition by the judging means M5, a renewing means M10 makes the means M9 start to renew the air-fuel ratio feedback control constant to suppress the over-rich of air-fuel ratio.</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>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB2cQ3zdHZVcPMPUnD29wsJ8vfx8fRzV3D0DNJ1C3X1UQhyDPH0V_B3U_D0C3EN8nP0ASrzdQoNBor6Kbj6uXv6ufIwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknivAA8DIyNzQ2MLR2MilAAA1BcrOQ</recordid><startdate>19900129</startdate><enddate>19900129</enddate><creator>SUEMATSU TOSHIO</creator><creator>KANBARA TATSUYOSHI</creator><creator>SUGINO TADASHI</creator><scope>EVB</scope></search><sort><creationdate>19900129</creationdate><title>DEVICE FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL COMBUSTION ENGINE</title><author>SUEMATSU TOSHIO ; KANBARA TATSUYOSHI ; SUGINO TADASHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0227138A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</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>SUEMATSU TOSHIO</creatorcontrib><creatorcontrib>KANBARA TATSUYOSHI</creatorcontrib><creatorcontrib>SUGINO TADASHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUEMATSU TOSHIO</au><au>KANBARA TATSUYOSHI</au><au>SUGINO TADASHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DEVICE FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL COMBUSTION ENGINE</title><date>1990-01-29</date><risdate>1990</risdate><abstract>PURPOSE:To prevent the generation of the odor of catalyst exhaust by correcting an air-fuel ratio feedback control constant to be an over-rich side at the time of the nonactive condition of a lower course side air-fuel ratio detecting means, while preventing the effect of the over-rich side correction to the control constant after the time corresponding to the executing condition of the air-fuel ratio feedback control after the correction. CONSTITUTION:When a lower course side air-fuel ratio detecting means M4 is judged to be in a nonactive condition by a judging means M5, a control constant setting means M9 corrects an air-fuel ratio feedback control constant used by an air-fuel ratio feedback control means M7 to be an over-rich side based on a control constant which is calculated by a control constant calculating means M6 at the time corresponding to an air-fuel ratio feedback control executing condition. When a defined time elapsed after the start of calculation of the air-fuel ratio feedback control constant by the means M6 in accordance with the judgment of corresponding to the defined air-fuel ratio feedback control executing condition by the judging means M5, a renewing means M10 makes the means M9 start to renew the air-fuel ratio feedback control constant to suppress the over-rich of air-fuel ratio.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS |
| title | DEVICE FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL COMBUSTION ENGINE |
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