Fig. 1 IMV control system
Fig. 2 HSRE(high side regeneration extension)
Fig. 3 Proportional FCV for bench marking
Fig. 4 load flow Q4 characteristics
Fig. 5 Independent proportional FCV
Fig. 6 HYDAC proportional solenoid valve
Fig. 7 FCV spool notch design
Fig. 8 Flow path area of FCV spool
Fig. 9 Proportional FCV test circuit
Fig. 10 Proportional FCV test layout
Fig. 11 IMV test controller
Fig. 12 Monitoring program main window
Fig. 13 FCV forward flow test
Fig. 14 Comparison of bi-directinal characteristics
Fig. 15 χv vs. Q characteristics of forward flow
참고문헌
- Shenouda, A., Quasi-Static Hydraulic Control Systems and Energy Savings Potential Using Independent Metering Four-Valve Assembly Configuration, PhD Dissertation, Georgia Institute of Technology, Atlanta, Georgia. 2006.
- Amir Shenouda and Wayne Book, "Optimal Mode Switching for a Hydraulic Actuator Controlled With Four-Valve Independent Metering Configuration", International Journal of Fluid Power 9, No.1, pp.35-43, 2008. https://doi.org/10.1080/14399776.2008.10781295
- G. H. Jung, "Steady-state Analysis of Proportional Flow Control Valve with Large Capacity", 2009 KSFC Spring Conference Proceeding, pp.67-72, 2009.
- Caterpillar, Catalog for 336F XE Hydraulic Excavator, 2016
- G. H. Jung, "Static Analysis of Dedicated Proportional Flow Control Valve for IMV", 2018 Spring Conference on Drive and Control, pp.115-122. 2018.