P. Y. Li, "Isothermal Compressed Air Energy Storage Systems - (i-CAES)", In Encyclopedia in Energy Storage, ed. Wolf-Dieter Steinmann, Elsevier, 2021. (Online access - https://doi.org/10.1016/B978-0-12-819723-3.00062-7)
M. Aziz, D. Gayme, K. Johnson, J. Konx-Hayes, P. Y. Li, E. Loth, L. Pao, D. R. Sadoway, J. Smith and S. Smith, "A co-design framework for wind energy integrated with storage", Joule 6(9) 21 Sept, 2022, pp. 1995-2015. https://doi.org/10.1016/j.joule.2022.08.014
K. Low, D.R. Berg, and P.Y. Li, "A Novel 3D Ring-Based Flapper Valve for Soft Robotic Applications", Robotics 2022,11(1),2; Dec. 22, 2021. doi:10.3390/robotics11010002
J. Siefert and P. Y. Li, "Optimal Control of the Energy Saving Hybrid Hydraulic-Electric Architecture (HHEA) for Off-Highway Mobile Machines", IEEE Transactions on Control Systems, 2020.
2025 IEEE International Conference on Vehicular Electronics and Safety (ICVES2025):
S. Ramesh and P. Y. Li, "Communication Framework for Electrified Off-Road Vehicles: A Case Study on the HHEA Compact Track Loader," IEEE ICVES, October 2025, Coventry, U.K.
2025 ASME/Bath Symposium on Fluid Power and Motion Control (part of IDETC/CIE):
R. Sah and P. Y. Li, "Motion Control Of A Propel Circuit Testbed For The Hybrid Hydraulic Electric Architecture (HHEA),” ASME 2025 IDETC/CIE2025, August 17-20, 2025, Anaheim, CA.
2025 IEEE Transportation Electrification Conference and Exposition, Anaheim CA (ITEC 2025):
J. Gant, J. Wills, Z. Chen, P.Y. Li, and E. Severson, "Electric System for Efficient Hybridization of Off-Highway Vehicles," IEEE Transportation Electrification Conference & Expo (ITEC), Anaheim, June 2025.
19th Scandinavian International Conference on Fluid Power (SICFP'25):
P. Y. Li, E. Sand, Z. Chen, D. Putra, "An Inline Hydro-Mechanical Transmission (i-HMT) with a Rotatable Valve Cam to Improve Efficiency," The 19th Scandinavian International Conference on Fluid Power, SICFP’25, June 2-4, 2025, Linköping, Sweden [Slides]
2024 IFAC Measurement, Estimation and Control Conference (MECC 2024):
Z. Chen and P. Y. Li, "Experimental Investigation of Using Vision-Based Wave Height Sensors and a Kalman Filter to Estimate Ocean Wave Field," 2024 IFAC Measurement, Estimation, and Control Conference (MECC 2024), Chicago, October 2024.
2024 Bath/ASME Symposium on Fluid Power and Motion Control, Bath UK (FPMC 2024):
J. Wills and P. Y. Li, "Comparison of Real-time Pressure Rail Selection Algorithms for the Hybrid Hydraulic-Electric Architecture: Case study on a track loader.", 2024 Bath/ASME Symposium on Fluid Power and Motion Control, FPMC2024-140443, Bath, UK, September 2024.
2023 ASME/Bath Symposium on Fluid Power and Motion Control, Sarasota FL (FPMC 2023):
A. Chatterjee and P. Y. Li, "HUMAN-IN-THE-LOOP MOTION CONTROL OF A TWO-DOF HYDRAULIC BACKHOE POWERED BY THE HYBRID HYDRAULIC ELECTRIC ARCHITECTURE (HHEA)", 2023 ASME/Bath Symposium on Fluid Power and Motion Control, Sarasota, FL, October 2023.
J. Wills and P. Y. Li, "ELECTRIC AND HYDRAULIC PROPEL TORQUE MODULATION FOR A COMPACT TRACK LOADER WITH THE HYBRID HYDRAULIC ELECTRIC ARCHITECTURE (HHEA)", 2023 ASME/Bath Symposium on Fluid Power and Motion Control, Sarasota, FL, October 2023.
J. K. Hartoyo, J. Voth, J. Pozo-Palacios, G. Boyce-Erickson, M. Herrera-Perez, J. Van de Ven, and P. Y. Li, "USING A NOVEL VARIABLE DISPLACEMENT LINKAGE MOTOR TO SAVE FUEL IN A COMPACT TRACK LOADER DRIVETRAIN", 2023 ASME/Bath Symposium on Fluid Power and Motion Control, Sarasota, FL, October 2023.