EP 1721081 B1 20081203 - VALVE CONTROL FOR HYDRAULIC ACTUATORS BASED ON ELECTRORHEOLOGICAL LIQUIDS
Title (en)
VALVE CONTROL FOR HYDRAULIC ACTUATORS BASED ON ELECTRORHEOLOGICAL LIQUIDS
Title (de)
VENTILANSTEUERUNG VON HYDRAULISCHEN AKTOREN AUF BASIS ELEKTRORHEOLOGISCHER FLÜSSIGKEITEN
Title (fr)
COMMANDE DE SOUPAPES FONDEES SUR DES LIQUIDES ELECTRORHEOLOGIQUES POUR ACTIONNEURS HYDRAULIQUES
Publication
Application
Priority
- EP 2005001975 W 20050225
- DE 102004010532 A 20040304
Abstract (en)
[origin: WO2005085654A1] The invention relates to a valve control for hydraulic actuators, wherein the actuator comprises two pressure medium chambers which are separated by an elastic or moveable element and the pressure medium chambers are joined to four valves, a, b, c, d, which are connected to form a full bridge, based on electrorheological/magnetorheological liquids. The aim of the invention is to further develop said valve in such a way that control and regulatory processes can be carried out in an extremely high dynamic manner. This is achieved by virtue of the fact that the valves can be controlled independently of each other. The following items are taken into account as manipulated variables for the corresponding adjustment:ql, q2 and qq,l and qq,2 or qDelta, qSigma and qq,l and qq,2 or qq,l and qq,2 . The division of the valve volume flows qa, qb, qc, qd and voltage signals for controlling the valves a, b, c, d are calculated from said manipulated variables.
IPC 8 full level
F15B 21/06 (2006.01); F15B 11/00 (2006.01)
CPC (source: EP)
F15B 11/006 (2013.01); F15B 21/065 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2005085654 A1 20050915; DE 102004010532 A1 20051215; DE 502005006134 D1 20090115; EP 1721081 A1 20061115; EP 1721081 B1 20081203
DOCDB simple family (application)
EP 2005001975 W 20050225; DE 102004010532 A 20040304; DE 502005006134 T 20050225; EP 05715527 A 20050225