Passive walking of biped emu with attitude control of body
نویسندگان
چکیده
The purpose of this paper is to show realization of passive walking of a biped robot Emu that is composed of one body and two legs. The semi-passive walking means that a biped robot walks passively on gentle descent accompanying with attitude control of the body. In the beginning of this paper, we outline the formulation for the passive and semi-passive walking. We analyze, next, stability of the semi-passive walking to regard the system as a discrete dynamical system. Finally, we show some simulated and experimental results to verify the validity of the controlled system and the analysis.
منابع مشابه
From Passive Dynamic Walking to Passive Turning of Biped walker
Dynamically stable biped robots mimicking human locomotion have received significant attention over the last few decades. Formerly, the existence of stable periodic gaits for straight walking of passive biped walkers was well known and investigated as the notion of passive dynamic walking. This study is aimed to elaborate this notion in the case of three dimensional (3D) walking and extend it f...
متن کاملAnalysis of 3D Passive Walking Including Turning Motions for the Finite-width Rimless Wheel
The focus of studies in the field of passive walking has often been on straight walking, while less attention has been paid to the field of turning motions. In this paper, the passive motions of a finite width rimless wheel as the simplest 3D model of passive biped walkers was investigated with a focus on turning motions. For this purpose, the hybrid model of the system consisting of continuous...
متن کاملRobust Trajectory Free Model Predictive Control of Biped Robots with Adaptive Gait Length
This paper employs nonlinear disturbance observer (NDO) for robust trajectory-free Nonlinear Model Predictive Control (NMPC) of biped robots. The NDO is used to reject the additive disturbances caused by parameter uncertainties, unmodeled dynamics, joints friction, and external slow-varying forces acting on the biped robots. In contrary to the slow-varying disturbances, handling sudden pushing ...
متن کاملSemi passive walking of a 7 DOF biped robot
This paper is concerned with the passive walking of an underactuated biped robot. First, we present the modelling of the biped robot (that is a 7 DOF robot). Then, we focus on the study of the almost passive dynamic walking. In particular, we show that the application of a nonlinear feedback control to stabilize the torso and knees leads the biped robot to perform a stable almost-passive dynami...
متن کاملEnergy Dissipation Rate Control Via a Semi-Analytical Pattern Generation Approach for Planar Three-Legged Galloping Robot based on the Property of Passive Dynamic Walking
In this paper an Energy Dissipation Rate Control (EDRC) method is introduced, which could provide stable walking or running gaits for legged robots. This method is realized by developing a semi-analytical pattern generation approach for a robot during each Single Support Phase (SSP). As yet, several control methods based on passive dynamic walking have been proposed by researchers to provide an...
متن کامل