TY - JOUR
T1 - Mathematical modeling of a two spool flow control servovalve using a pressure control pilot
AU - Anderson, Randall T.
AU - Li, Perry Y.
PY - 2002/9
Y1 - 2002/9
N2 - 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.
AB - 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.
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U2 - 10.1115/1.1485287
DO - 10.1115/1.1485287
M3 - Article
AN - SCOPUS:4143139552
SN - 0022-0434
VL - 124
SP - 420
EP - 427
JO - Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME
JF - Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME
IS - 3
ER -