DRIVE CONTROL SYSTEM FOR WORKING MACHINE, WORKING MACHINE WITH SAID DRIVE CONTROL SYSTEM, AND DRIVE CONTROL METHOD FOR SAID WORKING MACHINE
A drive control system 1 of a hydraulic excavator 2 includes a control device 50. When accelerating a turning body 5 to a target turning speed, the drive control device 50 controls an operation of the electric motor driving device 36 such that the electric motor 34 outputs high efficiency torque by...
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| creator | MURAOKA, Hideyasu YUDATE, Yoji IWABE, Kazuya |
| description | A drive control system 1 of a hydraulic excavator 2 includes a control device 50. When accelerating a turning body 5 to a target turning speed, the drive control device 50 controls an operation of the electric motor driving device 36 such that the electric motor 34 outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device 50 controls an operation of an oil pressure supply device 9 such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor 33. |
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When accelerating a turning body 5 to a target turning speed, the drive control device 50 controls an operation of the electric motor driving device 36 such that the electric motor 34 outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device 50 controls an operation of an oil pressure supply device 9 such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor 33.</description><language>eng ; fre ; ger</language><subject>BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; DREDGING ; FIXED CONSTRUCTIONS ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; FOUNDATIONS ; HEATING ; HYDRAULIC ENGINEERING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; SOIL SHIFTING ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; WEAPONS</subject><creationdate>2020</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=20200506&DB=EPODOC&CC=EP&NR=2982867B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200506&DB=EPODOC&CC=EP&NR=2982867B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MURAOKA, Hideyasu</creatorcontrib><creatorcontrib>YUDATE, Yoji</creatorcontrib><creatorcontrib>IWABE, Kazuya</creatorcontrib><title>DRIVE CONTROL SYSTEM FOR WORKING MACHINE, WORKING MACHINE WITH SAID DRIVE CONTROL SYSTEM, AND DRIVE CONTROL METHOD FOR SAID WORKING MACHINE</title><description>A drive control system 1 of a hydraulic excavator 2 includes a control device 50. When accelerating a turning body 5 to a target turning speed, the drive control device 50 controls an operation of the electric motor driving device 36 such that the electric motor 34 outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. 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When accelerating a turning body 5 to a target turning speed, the drive control device 50 controls an operation of the electric motor driving device 36 such that the electric motor 34 outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device 50 controls an operation of an oil pressure supply device 9 such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor 33.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP2982867B1 |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS |
| title | DRIVE CONTROL SYSTEM FOR WORKING MACHINE, WORKING MACHINE WITH SAID DRIVE CONTROL SYSTEM, AND DRIVE CONTROL METHOD FOR SAID WORKING MACHINE |
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