EP 1124668 A1 20010822 - A DEVICE AND A METHOD FOR CONTROLLING THE MOTION OF A PNEUMATIC ACTUATOR
Title (en)
A DEVICE AND A METHOD FOR CONTROLLING THE MOTION OF A PNEUMATIC ACTUATOR
Title (de)
VORRICHTUNG UND VERFAHREN ZUR BEWEGUNGSSTEUERUNG EINES PNEUMATISCHEN STELLGLIEDS
Title (fr)
DISPOSITIF ET PROCEDE PERMETTANT DE CONTROLER LE MOUVEMENT D'UN VERIN PNEUMATIQUE
Publication
Application
Priority
- SE 9901526 W 19990903
- SE 9802997 A 19980904
Abstract (en)
[origin: WO0013858A1] A method for controlling the motion of a pneumatic actuator (3), comprising at least one elongated cylinder (6) provided with a piston (4), dividing the cylinder (6) into a first chamber (5a) and a second chamber (5b), an actuating pressure supply line (14) connectable to at least one of said first and second chambers (5a, 5b), a control means (22a, 22b) for controlling the motion of the piston (4) relatively to the cylinder (6), and at least one sensor means (23, 30) adapted to sense a piston feature related to the piston motion and co-operating with the control means (22a, 22b). According to the invention a control device is provided with deterministically moving designs for the piston (4), a mathematical model (105, 105') in said control means (22a, 22b) for providing a control design system for controlling in a closed loop system a momentary movement of said piston (4) for each moving design based on said at least one piston feature signal, and generating a control signal (102) from said control means (22a, 22b) to move said piston (4) in accordance with an instant portion of the actual moving design.
IPC 1-7
IPC 8 full level
A01J 5/00 (2006.01); B25J 9/16 (2006.01); G05B 19/19 (2006.01); G05D 16/20 (2006.01)
IPC 8 main group level
B25J (2006.01)
CPC (source: EP SE)
A01J 5/0175 (2013.01 - EP SE); B25J 9/144 (2013.01 - EP); B25J 9/1641 (2013.01 - SE); B25J 9/1653 (2013.01 - EP); G05B 19/44 (2013.01 - EP); G05B 2219/45113 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT
DOCDB simple family (publication)
WO 0013858 A1 20000316; AU 5894799 A 20000327; EP 1124668 A1 20010822; SE 522303 C2 20040127; SE 9802997 D0 19980904; SE 9802997 L 20000305
DOCDB simple family (application)
SE 9901526 W 19990903; AU 5894799 A 19990903; EP 99946554 A 19990903; SE 9802997 A 19980904