Perry Li

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Perry Li

Professor, Mechanical Engineering


Mechanical Engineering
Room 309
111 Church Street SE
Minneapolis, MN 55455


Center for Compact and Fluid Power (CCEFP)


Ph.D. 1995, Mechanical Engineering, University of California at Berkeley
M.S. 1990, Biomedical Engineering, Boston University
B.A. 1987, Electrical and Information Sciences, Cambridge University

Professional Background

Professor of Mechanical Engineering, University of Minnesota, 2008-present
Deputy Director NSF ERC for Compact and Efficient Fluid Power , University of Minnesota, 2006-2013
Associate Professor of Mechanical Engineering, University of Minnesota, 2003-2008
Nelson Assistant Professor of Mechanical Engineering, University of Minnesota, 1997-2003
Visiting Faculty to Department of Mechanical Engineering, Bath University, UK, 2001
Member of Research Staff, Wilson Center for Research and TechnologyXerox Corporation, 1995-1997

Scientific & Professional Societies

  • Fellow, ASME
  • Senior Member, IEEE


Perry Li's research interests are in the general area of control systems, mechatronics, and fluid power with applications to energy systems, transportation, and roboticsFor specific topics, please visit his personal website.

Fluid Power Research Lab — ME 451/453
Mechatronics & Intelligent Machines Laboratory — ME 3130

ME Research Areas
Fluid Power
Sensing & Controls

ME Impact Areas
Energy Transition
Environment & Sustainability
Robotics & Mobility

Research Interests

Control systems, mechatronics and fluid power with applications to energy systems, transportation, and robotics. For specific topics, please visit Dr. Li's website.

Teaching interests 
System dynamics, control, and fluid power.

Teaching Subjects
ME 3281: Systems Dynamics and Control
ME 4232: Fluid Power Controls Lab
ME 8281: Advanced Control Systems Design
ME 8282: Nonlinear Systems
ME 8287: Topics in Control: Passivity and the Control of Mechanical and Fluid Powered Systems

Honors and Awards

  • Young Investigator Award in Flexible Automation, Japan-USA Symposium on Flexible Automation, 2000-2002.
  • Achievement Award, Corporate Research & Technology, Xerox Corporation , 1996
  • Special Recognition Award, Corporate Research & Technology, Xerox Corporation, 1997
  • Teaching Fellow, Biomedical Engineering, Boston University, 1987-88
  • Exhibitioner, Downing College, Cambridge University, 1986-87
  • Whitby Scholarship, Downing College, Cambridge University, 1984-86

Selected Publications


  • S.Y. Lee, P. Y. Li and F. Eskilsson, "Energetically Passive Multi Degree-of-Freedom Hydraulic Human Power Amplifier with Assistive Dynamics", IEEE Trans. on Control Systems, 2019. [To appear]
  • H. Tian, P. Y. Li and J. D. Van de Ven, "Valve Timing Control for a Digital Displacement Hydraulic Motor using an Angle-Domain Repetitive Controller", ASME/IEEE Trans. on Mechatronics, 2019. [To appear].
  • Z. Du, K. L. Cheong and P. Y. Li, "Energy Management Strategy of a Power-split hydraulic hybrid vehicle based on Lagrange Multiplier and Its Modifications", Proc. of the IME, Part I: Journal of Systems and Control, 2018 [To appear].
  • A. Srivatsa and P. Y. Li, "How moisture content affects the performance of a liquid piston air compressor/expander", J. of Energy Storage, 2018., pp.121-132.
  • J. Wieberdink, P. Y. Li, T. W. Simon and J. D. Van de Ven, "Effects of Porous Media Insert on the Efficiency and Power Density of a High Pressure (210 bar) Liquid Piston Air Compressor/Expander - An Experimental Study", Applied Energy (212), Feb., 2018, pp. 1025-1037.

See a full list of publications and visit Dr. Li's Google Scholar page.