COPING WITH TIME DELAY IN ROBOTIC SYSTEMS AND HAPTIC INTERFACES

Several works we have completed in coping with time delay problems in robotic systems and haptic interfaces are presented: ground-space teleoperation of a robot arm on a space satellite, passivity-based adaptive control of flexible robot arms and power assist devices, and partially continuous-time impedance display for haptic interface systems. For each topic, background, overview, the approach taken, and experimental results are discussed. Passivity is utilized directly or indirectly in all these works.