Pattern generation using coupled oscillators for robotic and biorobotic adaptive periodic movement

Abstract

In this study, a coupled pattern generator is used to achieve rhythmic gait movements by a planar five-link musculoskeletal biped model. In particular, five coupled oscillators are designed which provide the biped with the desired joint angles while a controller tracks the specified trajectories. The system is adaptive in that a high-level parameter controller can adjust the parameters of the pattern generator to change the frequency of the desired joint trajectories. Simulations show the biped walking while changing frequency of the gait as its joint angles track the pattern generator.