INTAKE AIR COOLING DEVICE ABNORMALITY DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
To provide an intake air cooling device abnormality detection system for an internal combustion engine, which can reliably detect abnormality in an intake air cooling device without delay even if characteristic abnormality occurs in an intake air temperature sensor.SOLUTION: An intake air cooling de...
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| creator | DAICHO TAKASHI ISHIMASA JO |
| description | To provide an intake air cooling device abnormality detection system for an internal combustion engine, which can reliably detect abnormality in an intake air cooling device without delay even if characteristic abnormality occurs in an intake air temperature sensor.SOLUTION: An intake air cooling device abnormality detection system for an engine 1 includes a first intake air temperature sensor 17 that detects an intake air temperature in an intake pipe 16 at a downstream side of an intercooler 13, and a second intake air temperature sensor 19 that detects an intake air temperature in an intake manifold 15. An abnormality determination part 4 determines that abnormality occurs in an intercooler cooling water circuit 30 if a state in which at least one of a value based on output from the first intake air temperature sensor 17 and a value based on output from the second intake air temperature sensor 19 exceeds a preset threshold value continues for predetermined time or longer when a load state determination part 3 determines that the engine is in a high load state.SELECTED DRAWING: Figure 2
【課題】吸気温センサに特性異常が生じている場合においても、遅れることなく確実に吸気冷却装置の異常を検知することができる内燃機関の吸気冷却装置異常検知システムを提供すること。【解決手段】インタークーラー１３の下流側の吸気管１６内の吸気温を検出する第１吸気温センサ１７と、インテークマニホールド１５内の吸気温を検出する第２吸気温センサ１９と、を備えた、エンジン１の吸気冷却装置異常検知システムであって、異常判定部４は、負荷状態判定部３によりエンジン１の負荷状態が高負荷状態であると判定された場合において、第１吸気温センサ１７の出力に基づく値と第２吸気温センサ１９の出力に基づく値のうち少なくともいずれか一方の値があらかじめ定めた閾値を超えた状態が、所定時間以上となった場合に、インタークーラー用冷却水回路３０に異常が生じていると判定する。【選択図】図２ |
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【課題】吸気温センサに特性異常が生じている場合においても、遅れることなく確実に吸気冷却装置の異常を検知することができる内燃機関の吸気冷却装置異常検知システムを提供すること。【解決手段】インタークーラー１３の下流側の吸気管１６内の吸気温を検出する第１吸気温センサ１７と、インテークマニホールド１５内の吸気温を検出する第２吸気温センサ１９と、を備えた、エンジン１の吸気冷却装置異常検知システムであって、異常判定部４は、負荷状態判定部３によりエンジン１の負荷状態が高負荷状態であると判定された場合において、第１吸気温センサ１７の出力に基づく値と第２吸気温センサ１９の出力に基づく値のうち少なくともいずれか一方の値があらかじめ定めた閾値を超えた状態が、所定時間以上となった場合に、インタークーラー用冷却水回路３０に異常が生じていると判定する。【選択図】図２</description><language>eng ; jpn</language><subject>BLASTING ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; 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=20191031&DB=EPODOC&CC=JP&NR=2019190370A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191031&DB=EPODOC&CC=JP&NR=2019190370A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DAICHO TAKASHI</creatorcontrib><creatorcontrib>ISHIMASA JO</creatorcontrib><title>INTAKE AIR COOLING DEVICE ABNORMALITY DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE</title><description>To provide an intake air cooling device abnormality detection system for an internal combustion engine, which can reliably detect abnormality in an intake air cooling device without delay even if characteristic abnormality occurs in an intake air temperature sensor.SOLUTION: An intake air cooling device abnormality detection system for an engine 1 includes a first intake air temperature sensor 17 that detects an intake air temperature in an intake pipe 16 at a downstream side of an intercooler 13, and a second intake air temperature sensor 19 that detects an intake air temperature in an intake manifold 15. An abnormality determination part 4 determines that abnormality occurs in an intercooler cooling water circuit 30 if a state in which at least one of a value based on output from the first intake air temperature sensor 17 and a value based on output from the second intake air temperature sensor 19 exceeds a preset threshold value continues for predetermined time or longer when a load state determination part 3 determines that the engine is in a high load state.SELECTED DRAWING: Figure 2
【課題】吸気温センサに特性異常が生じている場合においても、遅れることなく確実に吸気冷却装置の異常を検知することができる内燃機関の吸気冷却装置異常検知システムを提供すること。【解決手段】インタークーラー１３の下流側の吸気管１６内の吸気温を検出する第１吸気温センサ１７と、インテークマニホールド１５内の吸気温を検出する第２吸気温センサ１９と、を備えた、エンジン１の吸気冷却装置異常検知システムであって、異常判定部４は、負荷状態判定部３によりエンジン１の負荷状態が高負荷状態であると判定された場合において、第１吸気温センサ１７の出力に基づく値と第２吸気温センサ１９の出力に基づく値のうち少なくともいずれか一方の値があらかじめ定めた閾値を超えた状態が、所定時間以上となった場合に、インタークーラー用冷却水回路３０に異常が生じていると判定する。【選択図】図２</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>COMBUSTION ENGINES IN GENERAL</subject><subject>CONTROLLING COMBUSTION ENGINES</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>INTERNAL-COMBUSTION PISTON ENGINES</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>eNrjZAj19Atx9HZVcPQMUnD29_fx9HNXcHEN83QGCjn5-Qf5Ovp4hkQChUJcnUM8_f0UgiODQ1x9Fdz8gxSAWl2D_Bx9gBp9nUKDwdKufu6efq48DKxpiTnFqbxQmptByc01xNlDN7UgPz61uCAxOTUvtSTeK8DIwNDS0NLA2NzA0ZgoRQDMZjEG</recordid><startdate>20191031</startdate><enddate>20191031</enddate><creator>DAICHO TAKASHI</creator><creator>ISHIMASA JO</creator><scope>EVB</scope></search><sort><creationdate>20191031</creationdate><title>INTAKE AIR COOLING DEVICE ABNORMALITY DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE</title><author>DAICHO TAKASHI ; ISHIMASA JO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2019190370A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2019</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>COMBUSTION ENGINES IN GENERAL</topic><topic>CONTROLLING COMBUSTION ENGINES</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>INTERNAL-COMBUSTION PISTON ENGINES</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>DAICHO TAKASHI</creatorcontrib><creatorcontrib>ISHIMASA JO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DAICHO TAKASHI</au><au>ISHIMASA JO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>INTAKE AIR COOLING DEVICE ABNORMALITY DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE</title><date>2019-10-31</date><risdate>2019</risdate><abstract>To provide an intake air cooling device abnormality detection system for an internal combustion engine, which can reliably detect abnormality in an intake air cooling device without delay even if characteristic abnormality occurs in an intake air temperature sensor.SOLUTION: An intake air cooling device abnormality detection system for an engine 1 includes a first intake air temperature sensor 17 that detects an intake air temperature in an intake pipe 16 at a downstream side of an intercooler 13, and a second intake air temperature sensor 19 that detects an intake air temperature in an intake manifold 15. An abnormality determination part 4 determines that abnormality occurs in an intercooler cooling water circuit 30 if a state in which at least one of a value based on output from the first intake air temperature sensor 17 and a value based on output from the second intake air temperature sensor 19 exceeds a preset threshold value continues for predetermined time or longer when a load state determination part 3 determines that the engine is in a high load state.SELECTED DRAWING: Figure 2
【課題】吸気温センサに特性異常が生じている場合においても、遅れることなく確実に吸気冷却装置の異常を検知することができる内燃機関の吸気冷却装置異常検知システムを提供すること。【解決手段】インタークーラー１３の下流側の吸気管１６内の吸気温を検出する第１吸気温センサ１７と、インテークマニホールド１５内の吸気温を検出する第２吸気温センサ１９と、を備えた、エンジン１の吸気冷却装置異常検知システムであって、異常判定部４は、負荷状態判定部３によりエンジン１の負荷状態が高負荷状態であると判定された場合において、第１吸気温センサ１７の出力に基づく値と第２吸気温センサ１９の出力に基づく値のうち少なくともいずれか一方の値があらかじめ定めた閾値を超えた状態が、所定時間以上となった場合に、インタークーラー用冷却水回路３０に異常が生じていると判定する。【選択図】図２</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS |
| title | INTAKE AIR COOLING DEVICE ABNORMALITY DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE |
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