Quadruped Robot Running With a Bounding Gait
Scout II, an autonomous four-legged robot with only one actuator per compliant leg is described. We demonstrate the need to model the actuators and the power source of the robot system carefully in order to obtain experimentally valid models for simulation and analysis. We describe a new, simple running controller that requires minimal task level feedback, yet achieves reliable and fast running up to 1.2 m/s. These results contribute to the increasing evidence that apparently complex dynamically dexterous tasks may be controlled via simple control laws. An energetics analysis reveals a highly efficient system with a specific resistance of 0.32 when based on mechanical power dissipation and of 1.0 when based on total electrical power dissipation.
KeywordsMobile Robot Neural Oscillator Battery Voltage Quadruped Robot Hexapod Robot
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- M. Buehler, R. Battaglia, A. Cocosco, G. Hawker, J. Sarkis, and K. Yamazaki. Scout: A simple quadruped that walks, climbs and runs. In IEEE Int. Conf. Robotics and Automation, pages 1707–1712, May 1998.Google Scholar
- M. Buehler, A. Cocosco, K. Yamazaki, and R. Battaglia. Stable open loop walking in quadruped robots with stick legs. In IEEE Int. Conf. Robotics and Automation, pages 2348–2353, May 1999.Google Scholar
- G. Hawker and M. Buehler. Quadruped trotting with passive knees. In IEEE Int. Conf. Robotics and Automation, pages 3046–3051, April 2000.Google Scholar
- U. Saranli, M. Buehler, and D. E. Koditchek. Design, modelling and preliminary control of a compliant hexapod robot. In IEEE Int. Conf. Robotics and Automation, pages 2589–2596, April 2000.Google Scholar
- M. H. Raibert. Legged Robots that Balance. MIT Press, Cambridge, MA, 1986.Google Scholar
- J. Furusho, A. Sano, M. Sakaguchi, and E. Koizumi. Realization of bounce gait in a quadruped robot with articular-joint-type legs. In IEEE Int. Conf. Robotics and Automation, pages 697–702, May 1995.Google Scholar
- S. Akiyama and H. Kimura. Dynamic quadruped walk using neural oscillators-realization of pace and trot. In 13. Annual Conf. RSJ, pages 227–228, 1995.Google Scholar
- Knowledge Revolution. Working Model 2D User’s Guide. CA, 1996.Google Scholar
- S. Talebi. Compliant running and step climbing of the Scout II platform. Master’s thesis, McGill University, 2000.Google Scholar
- G. Gabrielli and Th. von Kármán. What price speed? Mechanical Engineering, 72(10):775–781, 1950.Google Scholar
- M. Ahmadi and M. Buehler. The ARL Monopod II running robot: Control and energetics. In IEEE Int. Conf. Robotics and Automation, pages 1689–1694, May 1999.Google Scholar
- M. Ahmadi and M. Buehler. Stable control of a simulated one-legged running robot with hip and leg compliance. IEEE Trans. Robotics and Automation, pages 96–104, Feb 1997.Google Scholar