EP 1965083 B1 20111012 - HYDRAULIC UNIT AND METHOD OF CONTROLLING SPEED OF MOTOR IN HYDRAULIC UNIT
Title (en)
HYDRAULIC UNIT AND METHOD OF CONTROLLING SPEED OF MOTOR IN HYDRAULIC UNIT
Title (de)
HYDRAULISCHE EINHEIT UND VERFAHREN ZUR STEUERUNG DER DREHZAHL EINES MOTORS IN DER HYDRAULISCHEN EINHEIT
Title (fr)
UNITÉ HYDRAULIQUE ET PROCÉDÉ PERMETTANT DE COMMANDER LA VITESSE DU MOTEUR DANS UNE UNITÉ HYDRAULIQUE
Publication
Application
Priority
- JP 2007066559 W 20070827
- JP 2006233529 A 20060830
Abstract (en)
[origin: EP1965083A1] In the present invention, an oil pressure unit includes an inverter 14 for supplying electric power to a motor 15; a load sensor 17 for detecting a load of the oil pressure pump 16A; a rotation sensor 19 for detecting a rotation speed of the motor 15; a current command value calculation means 12 for calculating a current command value so that a deviation between a speed command value representing a target rotation speed of the motor 15 and a rotation speed of the motor 15 converges to zero; a correction means 18A for correcting the current command value based on the load of the oil pressure pump 16A; and a control signal generation means for outputting a control signal to the inverter 14 based on a corrected current command value.
IPC 8 full level
F15B 11/00 (2006.01); F04B 49/00 (2006.01); F04B 49/06 (2006.01); H02P 27/06 (2006.01)
CPC (source: EP KR US)
F04B 49/065 (2013.01 - EP KR US); F04B 49/20 (2013.01 - EP KR US); F15B 11/0423 (2013.01 - EP KR US); F15B 11/17 (2013.01 - EP KR US); F04B 2201/1202 (2013.01 - EP KR US); F04B 2203/0201 (2013.01 - EP KR US); F04B 2203/0209 (2013.01 - EP KR US); F04B 2205/05 (2013.01 - EP KR US); F15B 2211/20515 (2013.01 - EP KR US); F15B 2211/20538 (2013.01 - EP KR US); F15B 2211/20576 (2013.01 - EP KR US); F15B 2211/255 (2013.01 - EP US); F15B 2211/6309 (2013.01 - EP US); F15B 2211/633 (2013.01 - EP US); F15B 2211/6651 (2013.01 - EP US); F15B 2211/6656 (2013.01 - EP US)
Citation (examination)
- US 5257960 A 19931102 - SATO KEIJI [JP]
- US 2006191262 A1 20060831 - JACKSON RANDALL S [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1965083 A1 20080903; EP 1965083 A4 20091111; EP 1965083 B1 20111012; AT E528512 T1 20111015; CN 101360917 A 20090204; CN 101360917 B 20111207; JP 2008057611 A 20080313; JP 4425253 B2 20100303; KR 100954697 B1 20100426; KR 20080087084 A 20080930; US 2009097986 A1 20090416; WO 2008026544 A1 20080306
DOCDB simple family (application)
EP 07806100 A 20070827; AT 07806100 T 20070827; CN 200780001536 A 20070827; JP 2006233529 A 20060830; JP 2007066559 W 20070827; KR 20087013286 A 20070827; US 16000307 A 20070827