Robust control of force-coupled human–robot-interaction in assembly processes

Flexibility and changeability of assembly processes require a close interlinkage between the worker and the automated assembly system. The interaction between human and robot improves complex assembly processes, particularly when a robot can be guided by a worker and the robot provides power assistance to the worker. The close physical contact and the direct coupling of forces of human and robot necessitate a stable and robust interaction control. This paper describes a framework developed for a robustly stable control design for interactive robots serving as intelligent assist systems for flexible and highly adaptable assembly.