In this paper we address the problem of energyoptimal gait generation for biped robots. Using a simpli ed robot dynamics that ignores the e ects of centripetal forces, we obtain unconstrained optimal trajectories generated by piecewise constant inputs. We study a complete gait cycle comprising single support, double support and the transition phases. The energy optimal gaits for di erent step lengths and velocities are compared with natural human gait.
L. Roussel, Carlos Canudas de Wit, Ambarish Goswam