Robust Walking Using Peicewise Linear Spring

Having a direct impact on the energy efficiency has made the compliance a favorable element in the robotic systems. Moreover, legged system can benefit from compliance for stability, speed, adaptability and robustness. Recently, we have studied the effects of compliant spine in quadrupedal robots. We have observed that having nonlinearity in the spine compliance can set a better trade-off between speed and energy efficiency. Similar to the spine in quadruped robots, compliance at the hip joint of bipedal robots can also improve the walking performance such as robustness. Here, we test the efficacy of piecewise linear hip compliance for robust bipedal walking.

[1]  Majid Nili Ahmadabadi,et al.  Piecewise linear spine for speed-energy efficiency trade-off in quadruped robots , 2013, Robotics Auton. Syst..

[2]  P. Cochat,et al.  Et al , 2008, Archives de pediatrie : organe officiel de la Societe francaise de pediatrie.

[3]  Majid Nili Ahmadabadi,et al.  Increasing the robustness of Acrobot walking control using compliant mechanisms , 2011, 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[4]  H. Sebastian Seung,et al.  Actuating a simple 3D passive dynamic walker , 2004, IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004.