15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
ON MANIPULATOR CONTROL VIA VELOCITY FIELDS
Javier Moreno and Rafael Kelly
División de Fisica Aplicada, CICESE, Apdo. Postal 2615 Adm. 1
Ensenada, B.C., 22800
MEXICO
fax: +52 (646) 175-05-54
e-mail: rkelly@cicese.mx

This paper addresses the control of robotic manipulators using the velocity field approach. Instead of the usual specification in motion robot control via desired position trajectories depending on time, the specification in the velocity field control formulation is given through a desired velocity vector field as a function of actual position regardless of time. This approach is useful for control following task. This paper presents two controllers to solve the velocity field control formulation in task space. Experiments using these controllers on a two degrees-of-freedom direct-drive arm illustrate the feasibility of the proposed approach.
Keywords: Robot control, Stability, Vector field, Velocity field
Session slot T-Fr-A19: Robot Control/Area code 1d : Robotics