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)
Citation (search report)
See references of WO 0013858A1
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