EP 1386083 B1 20060830 - A CONTROL SYSTEM AND A METHOD FOR CONTROLLING AN ACTUATOR AND FOR OPTIMIZING THE CONTROL BY MEANS OF SETS OF VALVES COUPLED IN PARALLEL
Title (en)
A CONTROL SYSTEM AND A METHOD FOR CONTROLLING AN ACTUATOR AND FOR OPTIMIZING THE CONTROL BY MEANS OF SETS OF VALVES COUPLED IN PARALLEL
Title (de)
STEUERSYSTEM UND -VERFAHREN ZUR STEUERUNG EINES STELLGLIEDS UND ZUR OPTIMIERUNG DER STEUERUNG DURCH EINEN SATZ VON PARALLELGESCHALTETEN VENTILEN
Title (fr)
SYSTEME DE COMMANDE ET PROCEDE PERMETTANT DE COMMANDER UN ACTIONNEUR ET D'OPTIMISER LA COMMANDE A L'AIDE D'ENSEMBLES DE VALVES MONTEES EN PARALLELE
Publication
Application
Priority
- FI 0200329 W 20020422
- FI 20010827 A 20010423
Abstract (en)
[origin: WO02086327A1] A control system and a method for controlling a pressure medium circuit which is arranged for the rate control and/or the position control of an actuator driven by pressurized medium. The pressure medium circuit comprises a first connection (1) between an input port (P) and a first working port (A), a second connection (2) between an output port (T) and a second working port (B), and valve means (102) for guiding the volume flow of said connections (1, 2), which valve means comprise at least a first set (103) and at least a second set (104) of controllable valves (V1-V4), coupled in parallel, which can be opened and closed, wherein the volume flow of the set (103, 104) is determined as the sum of the capacities of the valves controlled to be opened at a time, and wherein the first set (103) is coupled in series with the first connection (1) and the second set (104) is coupled in series with the second connection (2), and control means (105, 109) for controlling said valve means (102). The method comprises the steps of determining at least some of the discrete rates achieved by said actuator, when valves (V1-V4) of the sets (103, 104) are opened and closed in various combinations, selecting from these combinations at least one which, according to a set optimization criterion, realizes the desired rate at each moment of time, and guiding the valves (V1-V4) of said sets to positions complying with the selected combination.
IPC 8 full level
F15B 11/04 (2006.01); F15B 11/042 (2006.01); F15B 11/044 (2006.01); F15B 19/00 (2006.01)
CPC (source: EP)
F15B 11/0426 (2013.01); F15B 11/044 (2013.01); F15B 19/00 (2013.01); F15B 2211/40507 (2013.01); F15B 2211/40592 (2013.01); F15B 2211/411 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02086327 A1 20021031; AT E338211 T1 20060915; CA 2483644 A1 20021031; CA 2483644 C 20110419; DE 60214362 D1 20061012; DE 60214362 T2 20070913; DK 1386083 T3 20070108; EP 1386083 A1 20040204; EP 1386083 B1 20060830; ES 2271235 T3 20070416; FI 118608 B 20080115; FI 20010827 A0 20010423; FI 20010827 A 20021024
DOCDB simple family (application)
FI 0200329 W 20020422; AT 02716861 T 20020422; CA 2483644 A 20020422; DE 60214362 T 20020422; DK 02716861 T 20020422; EP 02716861 A 20020422; ES 02716861 T 20020422; FI 20010827 A 20010423