A challenge in realizing switch-mode hydraulic circuits is the need for a high-speed valve with fast transition time and high switching frequency. The work presented includes the design and modeling of a suitable valve and experimental demonstration of the prototype in a hydraulic boost converter. The design consists of two spools driven by crank-sliders, designed for 120 Hz maximum switching frequency at a flow rate of 22.7 lpm. The fully open throttling loss is designed for <2% of the rated pressure of 34.5 MPa. The transition time is less than 5% (0.42 ms at 120 Hz) of the total cycle and the duty cycle is adjustable from 0 to 1. Leakage and viscous friction losses in the design are less than 2% of the rated hydraulic energy per cycle. The experimental results agreed well with the model resulting in a 3% variation in transition time. The use of the high-speed valve in a pressure boosts converter demonstrated boost ratio capabilities of 1.08–2.06.

References

References
1.
Love
,
L. J.
,
Lanke
,
E.
, and
Alles
,
P.
,
2012
, “
Estimating the Impact (Energy, Emissions and Economics) of the U.S. Fluid Power Industry
,” Oak Ridge National Laboratory, Oak Ridge, TN, Report No.
ORNL/TM-2011/14
.https://info.ornl.gov/sites/publications/Files/Pub28014.pdf
2.
Linjama
,
M.
,
2011
, “
Digital Fluid Power—State of the Art
,”
12th Scandinavian International Conference on Fluid Power
, Tampere, Finland, May 18–20, pp. 331–353.https://pdfs.semanticscholar.org/a1a3/afd27352191866b5614af9abea93ff5a9cf7.pdf
3.
Mohan
,
N.
,
Undeland
,
T. M.
, and
Robbins
,
W. P.
,
1995
,
Power Electronics: Converters, Applications, and Design
,
Wiley
,
New York
.
4.
Pan
,
M.
,
Robertson
,
J.
,
Johnston
,
N.
,
Plummer
,
A.
, and
Hillis
,
A.
,
2014
, “
Experimental Investigation of a Switched Inertance Hydraulic System
,” ASME/BATH Symposium on Fluid Power and Motion Control, Bath, UK, Sept. 10–12, Paper No.
FPMC2014-7829
.http://opus.bath.ac.uk/40065/
5.
Pan
,
M.
,
Johnston
,
N.
,
Plummer
,
A.
,
Kudzma
,
S.
, and
Hillis
,
A.
,
2014
, “
Theoretical and Experimental Studies of a Switched Inertance Hydraulic System
,”
J. Syst. Control
,
228
(
1
), pp.
12
25
.
6.
Clark
,
R. E.
,
Jewell
,
G. W.
,
Forrest
,
J. S.
,
Rens
,
J.
, and
Maerky
,
C.
,
2005
, “
Design Features for Enhancing the Performance of Electromagnetic Valve Actuation Systems
,”
IEEE Trans. Magn.
,
41
(
3
), pp.
1163
1168
.
7.
Kajima
,
T.
,
Satoh
,
S.
, and
Sagawa
,
R.
,
1994
, “
Development of a High Speed Solenoid Valve
,”
Trans. Jpn. Soc. Mech. Eng., Part C
,
60
(
576
), pp.
2744
2751
.
8.
Muto
,
T.
,
Yamada
,
H.
, and
Suematsu
,
Y.
,
1990
, “
PWM Digital Control of a Hydraulic Actuator Utilizing Two-Way Solenoid Valves
,”
J. Fluid Control
,
20
(
3
), pp.
24
41
.
9.
Kajima
,
T.
, and
Kawamura
,
Y.
,
1995
, “
Development of a High-Speed Solenoid Valve: Investigation of Solenoids
,”
IEEE Trans. Ind. Electron.
,
42
(
1
), pp.
1
8
.
10.
Noergaard
,
C.
,
Roemer
,
D. B.
,
Bech
,
M. M.
, and
Andersen
,
T. O.
,
2015
, “
Experimental Validation of Mathematical Framework for Fast Switching Valves Used in Digital Hydraulic Machines
,”
ASME
Paper No. FPMC2015-9612.
11.
Manhartsgruber
,
B.
,
2006
, “
A Hydraulic Control Valve for PWM Actuation at 400 Hz
,”
Power Transmission and Motion Control (PTMC)
, Bath, UK, Sept. 13–15, pp.
373
385
.
12.
Royston
,
T.
, and
Singh
,
R.
,
1993
, “
Development of a Pulse-Width Modulated Pneumatic Rotary Valve for Actuator Position Control
,”
ASME J. Dyn. Syst. Meas. Control
,
115
(
3
), pp.
495
505
.
13.
Van de Ven
,
J. D.
, and
Katz
,
A.
,
2011
, “
Phase-Shift High-Speed Valve for Switch-Mode Control
,”
ASME J. Dyn. Syst. Meas. Control
,
133
(
1
), p.
011003
.
14.
Tu
,
H. C.
,
Rannow
,
M.
,
Van de Ven
,
J.
,
Wang
,
M.
,
Li
,
P.
, and
Chase
,
T.
,
2007
, “
High Speed Rotary Pulse Width Modulated On/Off Valve
,”
ASME
Paper No. IMECE2007-42559.
15.
Tu
,
H. C.
,
Rannow
,
M. B.
,
Wang
,
M.
,
Li
,
P. Y.
, and
Chase
,
T. R.
,
2009
, “
Modeling and Validation of a High Speed Rotary PWM On/Off Valve
,”
ASME
Paper No. DSCC2009-2763.
16.
Tu
,
H. C.
,
Rannow
,
M. B.
,
Wang
,
M.
,
Li
,
P. Y.
,
Chase
,
T. R.
, and
Van de Ven
,
J. D.
,
2012
, “
Design, Modeling, and Validation of a High-Speed Rotary Pulse-Width-Modulation On/Off Hydraulic Valve
,”
ASME J. Dyn. Syst. Meas. Control
,
134
(
6
), p.
061002
.
17.
Yokota
,
S.
, and
Akutu
,
K.
,
1991
, “
A Fast-Acting Electro-Hydraulic Digital Transducer
,”
JSME Int. J.
,
34
(
4
), pp.
489
495
.
18.
Lantela
,
T.
,
Kajaste
,
J.
,
Kostamo
,
J.
, and
Pietola
,
M.
,
2014
, “
Pilot Operated Miniature Valve With Fast Response and High Flow Capacity
,”
Int. J. Fluid Power
,
15
(
1
), pp.
11
18
.
19.
Sell
,
N. P.
,
Johnston
,
N.
,
Plummer
,
A. R.
, and
Kudzma
,
S.
,
2015
, “
Development of a Position Controlled Digital Hydraulic Valve
,”
ASME
Paper No. FPMC2015-9514.
20.
Yudell
,
A. C.
, and
Van de Ven
,
J. D.
,
2017
, “
Soft Switching in Switched Inertance Hydraulic Circuits
,”
ASME J. Dyn. Syst. Meas. Control
.
139
(
12
), p.
121007
.
21.
Yudell
,
A. C.
, and
Van de Ven
,
J. D.
,
2016
, “
Soft Switching in Switched Inertance Hydraulic Circuits
,”
ASME
Paper No. FPMC2016-1779.
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