Comparison of Control Algorithms Using a Generalized Model for a Human with an Exoskeleton

Abstract

This article presents a pictorial representation of a generalized model for a human interacting with an exoskeleton or a force-augmenting device. This model is used for comparing four different control schemes, which are: 1) Kazerooni's algorithm, 2) BLEEX’s algorithm, 3) technique inspired by fictitious gain, and 4) Force control with velocity and position feedback. The hardware and software requirements for the presented control algorithms are also discussed.

Keywords

• Force augmenting device, exoskeletons, Human-Robot Interaction, closed-loop control.