University of Minnesota
Aerospace Engineering and Mechanics
Spring 1999 Seminar Series

Human-in-the-Loop Control

Prof. Ron Hess

Department of Mechanical and Aeronautical Engineering, University of California- Davis


Since the early 1940's, considerable effort has been directed toward developing models of human feedback control activity. While approaches espousing psychological constructs have provided considerable insight into this modeling activity, the control-theoretic approach has proven the most useful for engineering analyses. Early control theoretic approaches are briefly reviewed and more recent modeling efforts are explored. In particular, the use of a simple, single-axis, human controller model to predict a human controller's preference in vehicle handling qualities is demonstrated. Idiosyncratic human control behavior such as exhibited in pilot-induced oscillations (PIOs) is discussed and a methodology for predicting the occurrence of PIOs is presented for vehicles described by both linear and non-linear dynamics. Finally, the utility of employing human-controller models in flight control system design is explored.

Friday, May 14, 1999
209 Akerman Hall
2:30-3:30 p.m.

Refreshments served after the seminar in 227 Akerman Hall.
Disability accomodations provided upon request.
Contact Kristal Belisle, Senior Secretary, 625-8000.