Variable impedance actuators: Moving the robots of tomorrow

Most of today's robots have rigid structures and actuators requiring complex software control algorithms and sophisticated sensor systems in order to behave in a compliant and safe way adapted to contact with unknown environments and humans. By studying and constructing variable impedance actuators and their control, we contribute to the development of actuation units which can match the intrinsic safety, motion performance and energy efficiency of biological systems and in particular the human. As such, this may lead to a new generation of robots that can co-exist and co-operate with people and get closer to the human manipulation and locomotion performance than is possible with current robots.

[1]  Bram Vanderborght,et al.  Third–Generation Pleated Pneumatic Artificial Muscles for Robotic Applications: Development and Comparison with McKibben Muscle , 2012, Adv. Robotics.

[2]  Edwin Dertien.  Dynamic walking with Dribbel , 2006 .

[3]  Bram Vanderborght,et al.  The AMP-Foot 2.0: Mimicking intact ankle behavior with a powered transtibial prosthesis , 2012, 2012 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob).

[4]  Bram Vanderborght,et al.  Design and control of a lower limb exoskeleton for robot-assisted gait training , 2009 .

[5]  L. Munari.  How the body shapes the way we think — a new view of intelligence , 2009 .

[6]  Stefano Stramigioli,et al.  Energy-Efficient Variable Stiffness Actuators , 2011, IEEE Transactions on Robotics.

[7]  Darwin G. Caldwell,et al.  Control of pneumatic muscle actuators , 1995 .

[8]  G. Hirzinger,et al.  A new variable stiffness design: Matching requirements of the next robot generation , 2008, 2008 IEEE International Conference on Robotics and Automation.

[9]  Matthew M. Williamson,et al.  Series elastic actuators , 1995, Proceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative Robots.

[10]  Bram Vanderborght,et al.  Mechanical Design of the huggable Robot Probo , 2011, Int. J. Humanoid Robotics.

[11]  Nikolaos G. Tsagarakis,et al.  AwAS-II: A new Actuator with Adjustable Stiffness based on the novel principle of adaptable pivot point and variable lever ratio , 2011, 2011 IEEE International Conference on Robotics and Automation.

[12]  Alin Albu-Schäffer,et al.  Human-Like Adaptation of Force and Impedance in Stable and Unstable Interactions , 2011, IEEE Transactions on Robotics.

[13]  Nikolaos G. Tsagarakis,et al.  Stabilization for the compliant humanoid robot COMAN exploiting intrinsic and controlled compliance , 2012, 2012 IEEE International Conference on Robotics and Automation.

[14]  Stefano Stramigioli,et al.  The vsaUT-II: A novel rotational variable stiffness actuator , 2012, 2012 IEEE International Conference on Robotics and Automation.

[15]  Giorgio Grioli,et al.  VSA-II: a novel prototype of variable stiffness actuator for safe and performing robots interacting with humans , 2008, 2008 IEEE International Conference on Robotics and Automation.

[16]  R. M. Alexander,et al.  Exploring Biomechanics: Animals in Motion , 1992 .

[17]  Nikolaos G. Tsagarakis,et al.  VSA-CubeBot: A modular variable stiffness platform for multiple degrees of freedom robots , 2011, 2011 IEEE International Conference on Robotics and Automation.

[18]  Alin Albu-Schäffer,et al.  The DLR hand arm system , 2011, 2011 IEEE International Conference on Robotics and Automation.

[19]  Rieko Osu,et al.  The central nervous system stabilizes unstable dynamics by learning optimal impedance , 2001, Nature.

[20]  Bram Vanderborght,et al.  Overview of the Lucy Project: Dynamic Stabilization of a Biped Powered by Pneumatic Artificial Muscles , 2008, Adv. Robotics.

[21]  Bram Vanderborght,et al.  Proxy-based Sliding Mode Control of a Planar Pneumatic Manipulator , 2009, Int. J. Robotics Res..

[22]  Neville Hogan,et al.  Impedance Control: An Approach to Manipulation: Part II—Implementation , 1985 .

[23]  Neville Hogan,et al.  Impedance Control: An Approach to Manipulation , 1984, 1984 American Control Conference.

[24]  Nikolaos G. Tsagarakis,et al.  MACCEPA 2.0: compliant actuator used for energy efficient hopping robot Chobino1D , 2011, Auton. Robots.

[25]  Alin Albu-Schäffer,et al.  Bidirectional antagonistic variable stiffness actuation: Analysis, design & Implementation , 2010, 2010 IEEE International Conference on Robotics and Automation.

[26]  Nikolaos G. Tsagarakis,et al.  A variable physical damping actuator (VPDA) for compliant robotic joints , 2010, 2010 IEEE International Conference on Robotics and Automation.

[27]  S. Stramigioli,et al.  A concept for a new Energy Efficient actuator , 2008, 2008 IEEE/ASME International Conference on Advanced Intelligent Mechatronics.

[28]  Oliver Eiberger,et al.  The DLR FSJ: Energy based design of a variable stiffness joint , 2011, 2011 IEEE International Conference on Robotics and Automation.

[29]  Nikolaos G. Tsagarakis,et al.  A novel actuator with adjustable stiffness (AwAS) , 2010, 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[30]  Bram Vanderborght,et al.  MACCEPA, the mechanically adjustable compliance and controllable equilibrium position actuator: Design and implementation in a biped robot , 2007, Robotics Auton. Syst..