DETECTING METHOD OF NUMBER OF REVOLUTION OF ENGINE
PURPOSE:To eliminate rotating variation component for exerting a bad influence on a control by averaging a prescribed crank angle rotation necessary time based on a crank angle signal of every equal crank angle, updating it successively, and detecting a number of revolution of engine. CONSTITUTION:B...
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| creator | OOBA HIDEHIRO |
| description | PURPOSE:To eliminate rotating variation component for exerting a bad influence on a control by averaging a prescribed crank angle rotation necessary time based on a crank angle signal of every equal crank angle, updating it successively, and detecting a number of revolution of engine. CONSTITUTION:Basing on a crank angle signal of every equal crank angle of every 30 deg., etc., a necessary time required for a rotation of 30 deg. of a crank shaft is measured, and a necessary time of the first storage means is updated. An average operation of said necessary time and a mean value of a necessary time before that time stored in the second storage means is executed and a mean necessary time of the second storage means is updated. Also, a number of revolution of engine is detected from the latest mean necessary time. Accordingly, in a high speed rotation area, a number of revolution of engine which has averaged a variation of the number of revolution of engine is detected, and in a low speed rotation area, a number of revolution of engine which has not averaged more than required a variation of the number of revolution engine is detected, a rotating variation component for exerting a bad influence on a control of the number of revolution is eliminated, and a number of revolution which can be controlled properly extending from a high speed to a low speed is detected. |
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CONSTITUTION:Basing on a crank angle signal of every equal crank angle of every 30 deg., etc., a necessary time required for a rotation of 30 deg. of a crank shaft is measured, and a necessary time of the first storage means is updated. An average operation of said necessary time and a mean value of a necessary time before that time stored in the second storage means is executed and a mean necessary time of the second storage means is updated. Also, a number of revolution of engine is detected from the latest mean necessary time. Accordingly, in a high speed rotation area, a number of revolution of engine which has averaged a variation of the number of revolution of engine is detected, and in a low speed rotation area, a number of revolution of engine which has not averaged more than required a variation of the number of revolution engine is detected, a rotating variation component for exerting a bad influence on a control of the number of revolution is eliminated, and a number of revolution which can be controlled properly extending from a high speed to a low speed is detected.</description><edition>3</edition><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT ; LIGHTING ; MEASURING ; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK ; MECHANICAL ENGINEERING ; PHYSICS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR ; WEAPONS</subject><creationdate>1984</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=19841220&DB=EPODOC&CC=JP&NR=S59226870A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19841220&DB=EPODOC&CC=JP&NR=S59226870A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OOBA HIDEHIRO</creatorcontrib><title>DETECTING METHOD OF NUMBER OF REVOLUTION OF ENGINE</title><description>PURPOSE:To eliminate rotating variation component for exerting a bad influence on a control by averaging a prescribed crank angle rotation necessary time based on a crank angle signal of every equal crank angle, updating it successively, and detecting a number of revolution of engine. CONSTITUTION:Basing on a crank angle signal of every equal crank angle of every 30 deg., etc., a necessary time required for a rotation of 30 deg. of a crank shaft is measured, and a necessary time of the first storage means is updated. An average operation of said necessary time and a mean value of a necessary time before that time stored in the second storage means is executed and a mean necessary time of the second storage means is updated. Also, a number of revolution of engine is detected from the latest mean necessary time. Accordingly, in a high speed rotation area, a number of revolution of engine which has averaged a variation of the number of revolution of engine is detected, and in a low speed rotation area, a number of revolution of engine which has not averaged more than required a variation of the number of revolution engine is detected, a rotating variation component for exerting a bad influence on a control of the number of revolution is eliminated, and a number of revolution which can be controlled properly extending from a high speed to a low speed is detected.</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>INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT</subject><subject>LIGHTING</subject><subject>MEASURING</subject><subject>MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK</subject><subject>MECHANICAL ENGINEERING</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><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBycQ1xdQ7x9HNX8HUN8fB3UfB3U_AL9XVyDQKxglzD_H1CQzz9_UA8Vz93Tz9XHgbWtMSc4lReKM3NoOjmGuLsoZtakB-fWlyQmJyal1oS7xUQbGppZGRmYW7gaEyMGgBx-ScM</recordid><startdate>19841220</startdate><enddate>19841220</enddate><creator>OOBA HIDEHIRO</creator><scope>EVB</scope></search><sort><creationdate>19841220</creationdate><title>DETECTING METHOD OF NUMBER OF REVOLUTION OF ENGINE</title><author>OOBA HIDEHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS59226870A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1984</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>INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT</topic><topic>LIGHTING</topic><topic>MEASURING</topic><topic>MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK</topic><topic>MECHANICAL ENGINEERING</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><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>OOBA HIDEHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OOBA HIDEHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DETECTING METHOD OF NUMBER OF REVOLUTION OF ENGINE</title><date>1984-12-20</date><risdate>1984</risdate><abstract>PURPOSE:To eliminate rotating variation component for exerting a bad influence on a control by averaging a prescribed crank angle rotation necessary time based on a crank angle signal of every equal crank angle, updating it successively, and detecting a number of revolution of engine. CONSTITUTION:Basing on a crank angle signal of every equal crank angle of every 30 deg., etc., a necessary time required for a rotation of 30 deg. of a crank shaft is measured, and a necessary time of the first storage means is updated. An average operation of said necessary time and a mean value of a necessary time before that time stored in the second storage means is executed and a mean necessary time of the second storage means is updated. Also, a number of revolution of engine is detected from the latest mean necessary time. Accordingly, in a high speed rotation area, a number of revolution of engine which has averaged a variation of the number of revolution of engine is detected, and in a low speed rotation area, a number of revolution of engine which has not averaged more than required a variation of the number of revolution engine is detected, a rotating variation component for exerting a bad influence on a control of the number of revolution is eliminated, and a number of revolution which can be controlled properly extending from a high speed to a low speed is detected.</abstract><edition>3</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT LIGHTING MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MECHANICAL ENGINEERING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS |
| title | DETECTING METHOD OF NUMBER OF REVOLUTION OF ENGINE |
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