Fall 2001

ME/IE 8773-8774

Electro-Hydraulic Control Systems and Applications in Earth Moving Equipment Industry

by

Sabri Cetinkunt
Professor
Department of Mechanical Engineering
University of Illinois at Chicago

Wednesday, November 7, 2001
3:30-4:30 p.m.
Room 108 ME
Broadcast on UNITE Channel A
Coffee and cookies will be available in 152 ME following the seminar

Current state of art in digitally controlled electro-hydraulic systems and their use in various earth moving equipment applications will be discussed. Embedded digital control has changed the way hydraulic motion control systems are designed. Digitally controlled closed center valves and pressure sensing hydraulic systems have been quickly replacing the older generation pilot actuated, mechanically controlled, open center hydraulic systems in applications such as earth moving equipment (i.e. wheel loaders, excavators, harvesters). With carefully designed and coordinated motion control systems, the power efficiency of EH system can be improved to the point that significant fuel savings can be achieved. Furthermore, the machine behavior can be optimized for different applications making it behave like a different machine via real-time control software capabilities. Nonlinear adaptive and learning control algorithms are developed and implemented for the next generation of earth moving equipment applications. Energy efficiency, high performance, software based re-configurability and reliability are the main objectives.

Sabri Cetinkunt is a professor of Mechanical Engineering at the University of Illinois at Chicago. He received the B.S. degree from the Technical University of Istanbul in 1982, M.S. and Ph.D. degrees from the Georgia Institute of Technology in 1984 and 1987, respectively. His research interests include mechatronics, motion control, servo control systems, high speed automated machine design, robotics, nano positioners, precision systems, electro-hydraulic control and applications in earth moving equipment technology, expert systems, neural networks, real time systems.

Informal Faculty Luncheon: Wednesday, November 7, 2001, 12:00 noon. Prof. Cetinkunt will not be able to attend.