INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND METHOD
In an internal combustion engine equipped with a variable compression ratio mechanism, the occurrence of knocking is reduced during deceleration. When it is determined that a target compression ratio of the variable compression ratio mechanism is greater than a threshold PRSL during the deceleration...
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| creator | KURASHIMA YOSHIKUNI |
| description | In an internal combustion engine equipped with a variable compression ratio mechanism, the occurrence of knocking is reduced during deceleration. When it is determined that a target compression ratio of the variable compression ratio mechanism is greater than a threshold PRSL during the deceleration, an air bypass valve interposed in a passage for bypassing a compressor of an exhaust turbo supercharger is opened to return intake air upstream (between the compressor and a throttle valve) of the throttle valve to upstream of the compressor, thereby reducing intake pressure upstream of the throttle valve and reducing in-cylinder compression pressure to reduce the occurrence of knocking. |
| format | Patent |
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When it is determined that a target compression ratio of the variable compression ratio mechanism is greater than a threshold PRSL during the deceleration, an air bypass valve interposed in a passage for bypassing a compressor of an exhaust turbo supercharger is opened to return intake air upstream (between the compressor and a throttle valve) of the throttle valve to upstream of the compressor, thereby reducing intake pressure upstream of the throttle valve and reducing in-cylinder compression pressure to reduce the occurrence of knocking.</description><language>eng</language><subject>BLASTING ; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; CONTROLLING COMBUSTION ENGINES ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; ENGINE PLANTS IN GENERAL ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; STEAM ENGINES ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; WEAPONS</subject><creationdate>2015</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=20150806&DB=EPODOC&CC=US&NR=2015219024A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25568,76551</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150806&DB=EPODOC&CC=US&NR=2015219024A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURASHIMA YOSHIKUNI</creatorcontrib><title>INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND METHOD</title><description>In an internal combustion engine equipped with a variable compression ratio mechanism, the occurrence of knocking is reduced during deceleration. 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When it is determined that a target compression ratio of the variable compression ratio mechanism is greater than a threshold PRSL during the deceleration, an air bypass valve interposed in a passage for bypassing a compressor of an exhaust turbo supercharger is opened to return intake air upstream (between the compressor and a throttle valve) of the throttle valve to upstream of the compressor, thereby reducing intake pressure upstream of the throttle valve and reducing in-cylinder compression pressure to reduce the occurrence of knocking.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS |
| title | INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND METHOD |
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