EP 2192308 B1 20150708 - Method and controller for controlling pressure fluid supply for a hydraulic actuator
Title (en)
Method and controller for controlling pressure fluid supply for a hydraulic actuator
Title (de)
Verfahren und Regelungsvorrichtung zur Regelung einer Druckmittelzufuhr für einen hydraulischen Aktor
Title (fr)
Procédé et dispositif de réglage d'admission de fluide pour un actionneur hydraulique
Publication
Application
Priority
DE 102008059659 A 20081129
Abstract (en)
[origin: EP2192308A2] The method involves supplying a hydraulic actuator (11) with an amount of pressure fluid by a variable displacement pump (13) that is operated by a speed-controlled motor (14) e.g. electro motor. A signal, which represents pressure of a pressure fluid, is fed back to a pressure controller (10) for controlling the variable displacement pump. The motor is operated based on a speed signal, and characteristics of a control amplifier of a pressure regulator are varied according to the speed signal. Amplification of the control amplifier is adjusted based on the speed signal. An independent claim is also included for a control device for controlling a pressure fluid supply for a hydraulic actuator of a machine.
IPC 8 full level
F15B 11/02 (2006.01); F15B 9/04 (2006.01)
CPC (source: EP)
F15B 9/04 (2013.01); F15B 11/02 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6333 (2013.01); F15B 2211/6656 (2013.01)
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2192308 A2 20100602; EP 2192308 A3 20140507; EP 2192308 B1 20150708; DE 102009055979 A1 20100602
DOCDB simple family (application)
EP 09014790 A 20091127; DE 102009055979 A 20091127