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Proceedings Papers

Incorporating a Rotatable Valve Cam to Improve the Efficiency of a Hydraulic Motor in an Inline Hydro-Mechanical Transmission (i-HMT)

Evan D. Sand, Perry Y. Li
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A029, September 14–16, 2022
Paper No: FPMC2022-89553
DOI: https://doi.org/10.1115/FPMC2022-89553
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Topics: Hydraulic motors, Valves, Engines, Motors, Energy efficiency, Compressibility, Compression, Design, Displacement, Fluids
Proceedings Papers

Accumulator Sizing for the Hybrid Hydraulic Electric Architecture (HHEA) Using Dynamic Programming

Jackson Wills, Perry Y. Li
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A043, September 14–16, 2022
Paper No: FPMC2022-90184
DOI: https://doi.org/10.1115/FPMC2022-90184
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Topics: Dynamic programming, Machinery, Pressure, Rails, Secondary cells
Proceedings Papers

A Power Take-Off (PTO) for Wave Energy Converters Based on the Hybrid Hydraulic-Electric Architecture (HHEA)

Jackson Wills, Adam Keester, Perry Y. Li
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A039, October 19–21, 2021
Paper No: FPMC2021-68871
DOI: https://doi.org/10.1115/FPMC2021-68871
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Topics: Actuators, Design, Electrical components, Generators, Manufacturing, Renewable energy sources, Secondary cells, Shorelines, Stress, Valves
Proceedings Papers

HIL Testbed and Motion Control Strategy for the Hybrid Hydraulic-Electric Architecture (HHEA)

Arpan Chatterjee, Perry Y. Li
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A041, October 19–21, 2021
Paper No: FPMC2021-68888
DOI: https://doi.org/10.1115/FPMC2021-68888
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Topics: Motion control, Rails, Pressure, Control equipment, Machinery, Switches, Electric motors, System efficiency, Electrification, Hardware
Proceedings Papers

Improving the Efficiency of a Compact Inline Hydro-Mechanical Transmission (i-HMT) at Lock-Up

Johnathan (Hans) Barkei, Perry Y. Li
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A036, October 19–21, 2021
Paper No: FPMC2021-68843
DOI: https://doi.org/10.1115/FPMC2021-68843
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Topics: Locks (Waterways), Compressibility, Engineering simulation, Engines, Hydrostatics, Motors, Pumps, Simulation, Valves, Displacement
Proceedings Papers

Incorporating Valve Switching Losses Into a Static Optimal Control Algorithm for the Hybrid Hydraulic-Electric Architecture (HHEA)

Aditya Khandekar, Jackson Wills, Meng (Rachel) Wang, Perry Y. Li
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A046, October 19–21, 2021
Paper No: FPMC2021-69045
DOI: https://doi.org/10.1115/FPMC2021-69045
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Topics: Algorithms, Optimal control, Valves, Rails, Pressure, Energy consumption, Architecture, Dynamic programming, Dynamics (Mechanics), Electric motors
Proceedings Papers

Dynamic Redesign of a Flow Control Servo-Valve Using a Pressure Control Pilot

Perry Y. Li
Proc. ASME. IMECE2001, Dynamic Systems and Control, 499-506, November 11–16, 2001
Paper No: IMECE2001/DSC-24563
DOI: https://doi.org/10.1115/IMECE2001/DSC-24563
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Topics: Flow control, Pressure control, Servomechanisms, Valves, Design, Dynamics (Mechanics), Steady state
Proceedings Papers

Preemptive Control of Multiply Actuated Processes: Application to Moisture Content Control in Paper Manufacturing Using Surrogate Measurements

Perry Y. Li, Petar J. Bjegovic, Shri Ramaswamy
Proc. ASME. IMECE2001, Dynamic Systems and Control, 285-292, November 11–16, 2001
Paper No: IMECE2001/DSC-24535
DOI: https://doi.org/10.1115/IMECE2001/DSC-24535
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Topics: Manufacturing, Dewatering, Dryers, Robustness, Vacuum, Air flow, Control algorithms, Drying, Energy consumption, Feedback
Proceedings Papers

Bayesian Belief Network Modeling and Diagnosis of Xerographic Systems

Chunhui Zhong, Perry Y. Li
Proc. ASME. IMECE2000, Dynamic Systems and Control: Volume 1, 195-202, November 5–10, 2000
Paper No: IMECE2000-2302
DOI: https://doi.org/10.1115/IMECE2000-2302
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Topics: Modeling, Printing, Computer software, Entropy, Fault diagnosis, Physics, Statistical distributions
Proceedings Papers

Mathematical Modeling of a Two Spool Flow Control Servovalve Using a Pressure Control Pilot

Randy T. Anderson, Perry Y. Li
Proc. ASME. IMECE2000, Dynamic Systems and Control: Volume 1, 321-328, November 5–10, 2000
Paper No: IMECE2000-2318
DOI: https://doi.org/10.1115/IMECE2000-2318
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Topics: Flow control, Modeling, Pressure control, Valves, Dynamic models, Feedback, Flow (Dynamics), Wire
Proceedings Papers

Passive Feedforward Approach to Bilateral Teleoperated Manipulators

Perry Y. Li, Dongjun Lee
Proc. ASME. IMECE2000, Dynamic Systems and Control: Volume 2, 1153-1160, November 5–10, 2000
Paper No: IMECE2000-2425
DOI: https://doi.org/10.1115/IMECE2000-2425
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Topics: Feedforward control, Manipulators, Closed loop systems, Dynamics (Mechanics), Feedback, Internal energy (Physics), Kinematics, Storage
Proceedings Papers

Design and Analysis of a Four-Degree-of-Freedom Hybrid Spherical Scanning Apparatus

Chuanqi Chen, Perry Y. Li, Arthur G. Erdman
Proc. ASME. IDETC-CIE2000, Volume 7A: 26th Biennial Mechanisms and Robotics Conference, 689-694, September 10–13, 2000
Paper No: DETC2000/MECH-14130
DOI: https://doi.org/10.1115/DETC2000/MECH-14130
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Topics: Design, Kinematics, Lasers, Linkages, Computation, Computer software, Cycles, Degrees of freedom, Design engineering, Dimensions
Proceedings Papers

Hydraulic Effort and the Efficiencies of Pump and Motors With Compressible Fluid

Perry Y. Li, Jonathan (Hans) Barkei
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A051, September 9–11, 2020
Paper No: FPMC2020-2801
DOI: https://doi.org/10.1115/FPMC2020-2801
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Topics: Fluids, Motors, Pumps, Flow (Dynamics), Pressure, Valves, Bulk modulus, Energy efficiency, Pistons, Density
Proceedings Papers

Optimal Control and Energy-Saving Analysis of Common Pressure Rail Architectures: HHEA and STEAM

Jacob Siefert, Perry Y. Li
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A050, September 9–11, 2020
Paper No: FPMC2020-2799
DOI: https://doi.org/10.1115/FPMC2020-2799
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Topics: Architecture, Optimal control, Pressure, Rails, Steam, Actuators, Algorithms, Cycles, Degrees of freedom, Energy consumption
Proceedings Papers

Automated Design and Analysis of a Variable Displacement Linkage Motor

Nathaniel J. Fulbright, Grey C. Boyce-Erickson, Thomas R. Chase, Perry Y. Li, James D. Van de Ven
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A036, October 7–9, 2019
Paper No: FPMC2019-1677
DOI: https://doi.org/10.1115/FPMC2019-1677
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Topics: Design, Displacement, Linkages, Motors, Engines, Pistons, Torque, Packaging, Pumps, Engine design
Proceedings Papers

A Hybrid Hydraulic-Electric Architecture (HHEA) for High Power Off-Road Mobile Machines

Perry Y. Li, Jacob Siefert, David Bigelow
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A011, October 7–9, 2019
Paper No: FPMC2019-1628
DOI: https://doi.org/10.1115/FPMC2019-1628
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Topics: Machinery, Roads, Torque, Actuators, Circuits, Electrical components, Electricity (Physics), Energy consumption, Hydraulics, Off-road vehicles
Proceedings Papers

Experimental Testing of a Variable Displacement Pump/Motor That Uses a Hydro-Mechanically Timed Digital Valving Mechanism to Achieve Partial-Stroke Piston Pressurization (PSPP)

Alissa Montzka, Nathan Epstein, Michael Rannow, Thomas R. Chase, Perry Y. Li
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A047, October 7–9, 2019
Paper No: FPMC2019-1693
DOI: https://doi.org/10.1115/FPMC2019-1693
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Topics: Displacement, Engines, Motors, Pistons, Pumps, Testing, Valves, Engineering prototypes, Friction, High pressure (Physics)
Proceedings Papers

Mechanical and Hydraulic Actuation Strategies for Mainstage Spool Valves in Hydraulic Motors

Grey C. Boyce-Erickson, Nathaniel J. Fulbright, John A. F. Voth, Thomas R. Chase, Perry Y. Li, James D. Van de Ven
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A043, October 7–9, 2019
Paper No: FPMC2019-1687
DOI: https://doi.org/10.1115/FPMC2019-1687
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Topics: Hydraulic motors, Valves, Engines, Motors, Compressibility, Design, Drag (Fluid dynamics), Dynamic models, Engineering simulation, Flow (Dynamics)
Proceedings Papers

Energetically Passive Bilateral Teleoperation of a Pneumatic Crawling Robot

Venkat Durbha, Perry Y. Li
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A039, October 7–9, 2019
Paper No: FPMC2019-1681
DOI: https://doi.org/10.1115/FPMC2019-1681
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Topics: Robots, Haptics, Phantoms, Actuators, Errors, Springs, Closed loop systems, Design, Feedback, Fluids
Proceedings Papers

Supervisory Control for a Switched Mode Hydraulic Transformer

Sangyoon Lee, Perry Y. Li
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A065, September 12–14, 2018
Paper No: FPMC2018-8935
DOI: https://doi.org/10.1115/FPMC2018-8935
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Topics: Control equipment, Flow (Dynamics), Hydraulic pumps, Motors, Pressure