Abnormality diagnosis apparatus for engine control system
In a condition where an engine is running, a fuel injector injects no fuel, and a fuel pump discharges no fuel so that a fuel pressure in a common-rail is kept constant, an ECU computes an actual torque based on a current engine speed and determines whether the actual torque is increased or decrease...
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| creator | MAJIMA YUSUKE |
| description | In a condition where an engine is running, a fuel injector injects no fuel, and a fuel pump discharges no fuel so that a fuel pressure in a common-rail is kept constant, an ECU computes an actual torque based on a current engine speed and determines whether the actual torque is increased or decreased relative to a predetermined reference torque. Moreover, in the same condition as above, a fuel pressure in the common-rail is detected. Based on variations of the actual torque and the fuel pressure in the common-rail, the ECU determines whether an abnormality occurs and identifies a type of the abnormality. |
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Moreover, in the same condition as above, a fuel pressure in the common-rail is detected. Based on variations of the actual torque and the fuel pressure in the common-rail, the ECU determines whether an abnormality occurs and identifies a type of the abnormality.</description><language>eng</language><subject>MEASURING ; PHYSICS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2014</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=20140624&DB=EPODOC&CC=US&NR=8756984B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140624&DB=EPODOC&CC=US&NR=8756984B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MAJIMA YUSUKE</creatorcontrib><title>Abnormality diagnosis apparatus for engine control system</title><description>In a condition where an engine is running, a fuel injector injects no fuel, and a fuel pump discharges no fuel so that a fuel pressure in a common-rail is kept constant, an ECU computes an actual torque based on a current engine speed and determines whether the actual torque is increased or decreased relative to a predetermined reference torque. Moreover, in the same condition as above, a fuel pressure in the common-rail is detected. Based on variations of the actual torque and the fuel pressure in the common-rail, the ECU determines whether an abnormality occurs and identifies a type of the abnormality.</description><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLB0TMrLL8pNzMksqVRIyUxMz8svzixWSCwoSCxKLCktVkjLL1JIzUvPzEtVSM7PKynKz1EoriwuSc3lYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxocEW5qZmlhYmTkbGRCgBADzzL0c</recordid><startdate>20140624</startdate><enddate>20140624</enddate><creator>MAJIMA YUSUKE</creator><scope>EVB</scope></search><sort><creationdate>20140624</creationdate><title>Abnormality diagnosis apparatus for engine control system</title><author>MAJIMA YUSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US8756984B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2014</creationdate><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>MAJIMA YUSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MAJIMA YUSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Abnormality diagnosis apparatus for engine control system</title><date>2014-06-24</date><risdate>2014</risdate><abstract>In a condition where an engine is running, a fuel injector injects no fuel, and a fuel pump discharges no fuel so that a fuel pressure in a common-rail is kept constant, an ECU computes an actual torque based on a current engine speed and determines whether the actual torque is increased or decreased relative to a predetermined reference torque. Moreover, in the same condition as above, a fuel pressure in the common-rail is detected. Based on variations of the actual torque and the fuel pressure in the common-rail, the ECU determines whether an abnormality occurs and identifies a type of the abnormality.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | Abnormality diagnosis apparatus for engine control system |
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