Intelligent Control of High-Speed Turning in a Quadruped

Understanding and implementing the control mechanisms that animals use to robustly negotiate a variety of terrains at high speed remains an unsolved problem. Previous research has resulted in control of quadruped running over a range of low speeds or narrowly around a single high speed. Control over a range of both low and high speeds is difficult because a quadruped system is significantly more responsive at high speeds than at low speeds, and because the proportional-derivative style controllers used by many of the previous researchers are only effective locally around the single speed and turning rate at which the controller was tuned. This work presents a fuzzy control strategy that manages the complex coupling between the multiple system inputs and outputs to successfully execute high-speed turns over a range of speeds and turning rates. The resulting control system stabilizes a 3D quadruped trot up to 4 m/s and turning up to 30 deg/s, on a quadruped system with articulated legs and practical leg mass properties in a simulation environment with realistic friction coefficients and system losses.

[1]  Luther R. Palmer,et al.  3D control of a high-speed quadruped trot , 2006, Ind. Robot.

[2]  David E. Orin,et al.  A 3D Galloping Quadruped Robot , 2005, CLAWAR.

[3]  Philippe Gorce,et al.  Study of a distributed control architecture for a quadruped robot , 1994, J. Intell. Robotic Syst..

[4]  M H Raibert,et al.  Trotting, pacing and bounding by a quadruped robot. , 1990, Journal of biomechanics.

[5]  Martin Buehler,et al.  On the Dynamics of Bounding and Extensions: Towards the Half-Bound and Gallop Gaits , 2006 .

[6]  Luther R. Palmer,et al.  Intelligent control of an experimental articulated leg for a galloping machine , 2003, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422).

[7]  Daniel E. Koditschek,et al.  Analysis of a Simplified Hopping Robot , 1991, Int. J. Robotics Res..

[8]  Yasuhiro Fukuoka,et al.  Adaptive Dynamic Walking of a Quadruped Robot on Irregular Terrain Based on Biological Concepts , 2003, Int. J. Robotics Res..

[9]  Luther R. Palmer.  Intelligent control and force redistribution for a high-speed quadruped trot , 2007 .

[10]  Marc H. Raibert,et al.  Legged Robots That Balance , 1986, IEEE Expert.

[11]  N. Heglund,et al.  Energetics and mechanics of terrestrial locomotion. II. Kinetic energy changes of the limbs and body as a function of speed and body size in birds and mammals. , 1982, The Journal of experimental biology.

[12]  David E. Orin,et al.  Intelligent control of quadruped gallops , 2003 .

[13]  David E. Orin,et al.  DynaMechs: An Object Oriented Software Package for Efficient Dynamic Simulation of Underwater Robotic Vehicles , 1995 .

[14]  Luther R. Palmer,et al.  Control of a 3D Quadruped Trot , 2005, CLAWAR.

[15]  Luther R. Palmer,et al.  Force Redistribution in a Quadruped Running Trot , 2007, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[16]  P Nanua,et al.  Energy comparison between trot, bound, and gallop using a simple model. , 1995, Journal of biomechanical engineering.

[17]  Kenneth J. Waldron,et al.  The Significance of Leg Mass in Modeling Quadrupedal Running Gaits , 2002 .

[18]  G. Cavagna,et al.  Mechanical work in terrestrial locomotion: two basic mechanisms for minimizing energy expenditure. , 1977, The American journal of physiology.

[19]  Hugh M. Herr,et al.  A Trotting Horse Model , 2000, Int. J. Robotics Res..

[20]  Kazuo Tsuchiya,et al.  Dynamic turning control of a quadruped locomotion robot using oscillators , 2005, Adv. Robotics.

[21]  D. F. Hoyt,et al.  Gait and the energetics of locomotion in horses , 1981, Nature.

[22]  Yasuhiro Fukuoka,et al.  Adaptive Dynamic Walking of a Quadruped Robot on Natural Ground Based on Biological Concepts , 2007, Int. J. Robotics Res..

[23]  Gregory S. Hornby,et al.  Autonomous evolution of gaits with the Sony Quadruped Robot , 1999 .

[24]  A. Garrod.  Animal Locomotion , 1874, Nature.

[25]  N. Heglund,et al.  Speed, stride frequency and energy cost per stride: how do they change with body size and gait? , 1988, The Journal of experimental biology.

[26]  D. A. Dorsett,et al.  The Integration of the Patterned Output of Buccal Motoneurones During Feeding in Tritonia Hombergi , 1979 .

[27]  J. Bertram,et al.  Acceleration and balance in trotting dogs. , 1999, The Journal of experimental biology.

[28]  T. Grand.  Body weight: its relation to tissue composition, segment distribution, and motor function. I. Interspecific comparisons. , 1977, American journal of physical anthropology.