Locking diagnosis method and device, equipment and storage medium
The invention discloses a locking diagnosis method, device and equipment and a storage medium. The method comprises the steps that a crankshaft signal and a camshaft signal are obtained; determining an initial crankshaft corner set corresponding to the camshaft based on the crankshaft signal and the...
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| creator | SONG TONGHAO SUN CHAO ZHANG BO DENG NAISHANG LIU TINGWEI TOKINORI |
| description | The invention discloses a locking diagnosis method, device and equipment and a storage medium. The method comprises the steps that a crankshaft signal and a camshaft signal are obtained; determining an initial crankshaft corner set corresponding to the camshaft based on the crankshaft signal and the camshaft signal; determining a first crankshaft corner set corresponding to a first time period and a second crankshaft corner set corresponding to a second time period based on the initial crankshaft corner set; and determining a locking diagnosis result based on the first crank angle set and the second crank angle set. By means of the method, on the basis that an additional sensor or actuator does not need to be added, by checking the rotation angle of the cam shaft and the rotation angle of the crankshaft in the stable operation process of an engine in the starting process, the fault is accurately located to the locking function failure of the VVT system, and the influences of the installation position of the c |
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The method comprises the steps that a crankshaft signal and a camshaft signal are obtained; determining an initial crankshaft corner set corresponding to the camshaft based on the crankshaft signal and the camshaft signal; determining a first crankshaft corner set corresponding to a first time period and a second crankshaft corner set corresponding to a second time period based on the initial crankshaft corner set; and determining a locking diagnosis result based on the first crank angle set and the second crank angle set. By means of the method, on the basis that an additional sensor or actuator does not need to be added, by checking the rotation angle of the cam shaft and the rotation angle of the crankshaft in the stable operation process of an engine in the starting process, the fault is accurately located to the locking function failure of the VVT system, and the influences of the installation position of the c</description><language>chi ; eng</language><subject>BLASTING ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; ENGINE PLANTS IN GENERAL ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; STEAM ENGINES ; WEAPONS</subject><creationdate>2023</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=20231010&DB=EPODOC&CC=CN&NR=116857063A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231010&DB=EPODOC&CC=CN&NR=116857063A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SONG TONGHAO</creatorcontrib><creatorcontrib>SUN CHAO</creatorcontrib><creatorcontrib>ZHANG BO</creatorcontrib><creatorcontrib>DENG NAISHANG</creatorcontrib><creatorcontrib>LIU TINGWEI</creatorcontrib><creatorcontrib>TOKINORI</creatorcontrib><title>Locking diagnosis method and device, equipment and storage medium</title><description>The invention discloses a locking diagnosis method, device and equipment and a storage medium. The method comprises the steps that a crankshaft signal and a camshaft signal are obtained; determining an initial crankshaft corner set corresponding to the camshaft based on the crankshaft signal and the camshaft signal; determining a first crankshaft corner set corresponding to a first time period and a second crankshaft corner set corresponding to a second time period based on the initial crankshaft corner set; and determining a locking diagnosis result based on the first crank angle set and the second crank angle set. 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The method comprises the steps that a crankshaft signal and a camshaft signal are obtained; determining an initial crankshaft corner set corresponding to the camshaft based on the crankshaft signal and the camshaft signal; determining a first crankshaft corner set corresponding to a first time period and a second crankshaft corner set corresponding to a second time period based on the initial crankshaft corner set; and determining a locking diagnosis result based on the first crank angle set and the second crank angle set. By means of the method, on the basis that an additional sensor or actuator does not need to be added, by checking the rotation angle of the cam shaft and the rotation angle of the crankshaft in the stable operation process of an engine in the starting process, the fault is accurately located to the locking function failure of the VVT system, and the influences of the installation position of the c</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS |
| title | Locking diagnosis method and device, equipment and storage medium |
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