Mathematical Modeling of a Two Spool Flow Control Servovalve Using a Pressure Control Pilot1
2002 ◽
Vol 124
(3)
◽
pp. 420-427
◽
Keyword(s):
A nonlinear dynamic model for an unconventional, commercially available electrohydraulic flow control servovalve is presented. The two stage valve differs from the conventional servovalve design in that: it uses a pressure control pilot stage; the boost stage uses two spools, instead of a single spool, to meter flow into and out of the valve separately; and it does not require a feedback wire and ball. Consequently, the valve is significantly less expensive. The proposed model captures the nonlinear and dynamic effects. The model has been coded in Matlab/Simulink and experimentally validated.
2000 ◽
Keyword(s):
Keyword(s):
2001 ◽
Vol 124
(1)
◽
pp. 62-66
◽
Keyword(s):
2020 ◽
pp. 1045389X2095361
2010 ◽
Vol 2
(1)
◽
pp. 1-17