Model predictive control for biped robots in climbing stairs

In this paper, nonlinear model predictive control method is used for biped robots in climbing stairs. The main feature of the proposed approach is that it does not need any offline or on-line trajectory planning. The up-stair gait is formulated such that the environmental constraints and the stability constraints of the robot are satisfied. Another advantage of the proposed method is that the robot is able to climb stairs without knowing the width and height of the stairs. The proposed method is applied to a 5-DOF biped robot in sagittal plane. The effectiveness of the method is shown through simulations.

[1]  Changjiu Zhou,et al.  Dynamic balance of a biped robot using fuzzy reinforcement learning agents , 2003, Fuzzy Sets Syst..

[2]  Pierre-Brice Wieber,et al.  On the implementation of model predictive control for on-line walking pattern generation , 2008, 2008 IEEE International Conference on Robotics and Automation.

[3]  Chong-Ho Choi,et al.  Trajectory generation and control for a biped robot walking upstairs , 2010 .

[4]  Jong-Wook Kim,et al.  Trajectory generation schemes for bipedal ascending and descending stairs using univariate dynamic encoding algorithm for searches (uDEAS) , 2010 .

[5]  Guy Bessonnet,et al.  Forces acting on a biped robot. Center of pressure-zero moment point , 2004, IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans.

[6]  Kazuhito Yokoi,et al.  Biped walking pattern generation by using preview control of zero-moment point , 2003, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422).

[7]  M. Vukobratovic,et al.  Contribution to the Synthesis of Biped Gait , 1968 .

[8]  Pierre-Brice Wieber,et al.  Online walking gait generation with adaptive foot positioning through Linear Model Predictive control , 2008, 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[9]  Ohung Kwon,et al.  Optimal trajectory generation for biped robots walking up-and-down stairs , 2006 .

[10]  Mohammad Farrokhi,et al.  Dynamic Walking of Biped Robots with Obstacles Using Predictive Controller , 2011 .

[11]  Minoru Sasaki,et al.  A ZMP Feedback Control for Biped Balance its Application to In-Place Lateral Stepping Motion , 2008, J. Comput..

[12]  Yan Wang,et al.  Real-Time Control of Full Actuated Biped Robot Based on Nonlinear Model Predictive Control , 2008, ICIRA.

[13]  Mohammad Farrokhi,et al.  Robust Trajectory Free Model Predictive Control of Biped Robots with Adaptive Gait Length , 2011 .

[14]  Kazuhito Yokoi,et al.  Planning walking patterns for a biped robot , 2001, IEEE Trans. Robotics Autom..

[15]  Ken Chen,et al.  Gait Synthesis and Sensory Control of Stair Climbing for a Humanoid Robot , 2008, IEEE Transactions on Industrial Electronics.

[16]  Chung Ying Amy Chan.  Dynamic modeling, control and simulation of a planar five-link bipedal walking system , 2000 .

[17]  Pierre-Brice Wieber,et al.  Trajectory Free Linear Model Predictive Control for Stable Walking in the Presence of Strong Perturbations , 2006, 2006 6th IEEE-RAS International Conference on Humanoid Robots.