EP 2055948 A1 20090506 - Method of controlling a cyclically commutated hydraulic pump
Title (en)
Method of controlling a cyclically commutated hydraulic pump
Title (de)
Verfahren zur Steuerung einer zyklisch kommutierten hydraulischen Pumpe
Title (fr)
Procédé de contrôle de pompe hydraulique commutée cycliquement
Publication
Application
Priority
- EP 07254332 A 20071101
- EP 07254337 A 20071101
- EP 07254331 A 20071101
- EP 07254333 A 20071101
- EP 08016531 A 20080919
Abstract (en)
When employing synthetically commutated hydraulic pumps (1), a time delay between a change in fluid flow demand (15) and the resulting fluid flow output (13) can be observed. It is suggested to use a time evolvement function, taking into account the time evolvement of the fluid flow demand and/or the time evolvement of the pumping strokes, to modify the actuation of the electrically commutated valves. The time evolvement function comprises a vectorised variable being indicative of the time dependency of the fluid output flow during a pumping stroke.
IPC 8 full level
F04B 7/00 (2006.01); F01B 25/02 (2006.01); F01B 25/10 (2006.01); F04B 49/06 (2006.01); F04B 49/22 (2006.01)
CPC (source: EP)
F01B 25/02 (2013.01); F01B 25/10 (2013.01); F04B 7/0076 (2013.01); F04B 11/005 (2013.01); F04B 49/06 (2013.01); F04B 49/243 (2013.01); F04B 2201/0601 (2013.01); F04B 2205/09 (2013.01); F04B 2205/13 (2013.01)
Citation (applicant)
- EP 0494236 B1 19951213 - ARTEMIS INTELLIGENT POWER LTD [GB]
- WO 9105163 A1 19910418 - UNIV EDINBURGH [GB]
- US 4321014 A 19820323 - EBURN JR WILLIAM H, et al
- EP 1537333 B1 20060614 - ARTEMIS INTELLIGENT POWER LTD [GB]
Citation (search report)
- [DA] EP 1537333 B1 20060614 - ARTEMIS INTELLIGENT POWER LTD [GB]
- [DA] US 4321014 A 19820323 - EBURN JR WILLIAM H, et al
- [DA] WO 9105163 A1 19910418 - UNIV EDINBURGH [GB]
- [DA] EP 0494236 B1 19951213 - ARTEMIS INTELLIGENT POWER LTD [GB]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2055947 A1 20090506; EP 2055947 B1 20100721; AT E475013 T1 20100815; AT E475014 T1 20100815; DE 602008001854 D1 20100902; DE 602008001855 D1 20100902; EP 2055948 A1 20090506; EP 2055948 B1 20100721; EP 2055949 A1 20090506; EP 2055950 A1 20090506; EP 2055950 B1 20170412
DOCDB simple family (application)
EP 08016530 A 20080919; AT 08016530 T 20080919; AT 08016531 T 20080919; DE 602008001854 T 20080919; DE 602008001855 T 20080919; EP 08016531 A 20080919; EP 08016532 A 20080919; EP 08016533 A 20080919