1. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Configuration of the proposed flow control valve

2. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Validation of the pilot valve simulation model: (a) dynamic performance and (b) static performance

3. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Photo of the proportional flow valve test rig: (1) pilot valve, (2) gear flow meter (0–15 L/min), (3) displacement sensor 4, pressure sensor, (5), and Valvistor valve

4. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Calibration of LVDT

5. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Relationship among the pi, po, and pc

6. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Step response of the main stage displacement

7. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Steady performance of main stage displacement

8. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Dynamic response of proposed valve with compensation

9. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Comparison of the numerical results and tested results under steady condition: (a) Qt versus Δpm and (b) xm versus Δpm

10. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Steady control performance (simulation model): (a) xm versus Ui and (b) Qt versus Ui

11. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Steady load characteristics (simulation model): (a) performance with pilot compensation scheme and (b) performance without pilot compensation scheme

12. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Dynamic response of the step input signal at constant pi and △pm

13. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Simulation result of dynamic performance

14. Date of download: 10/20/2017
Copyright © ASME. All rights reserved.
From: Performance of Proportional Flow Valve With Pilot Pressure Drop—Spool Opening Compensation
J. Dyn. Sys., Meas., Control. 2016;139(1): doi: /
Figure Legend:
Simulation result of frequency response