DocumentCode :
2341993
Title :
Quadrupedal running at high speed over uneven terrain
Author :
Palmer, Luther R., III ; Orin, David E.
Author_Institution :
Case Western Reserve Univ., Cleveland
fYear :
2007
fDate :
Oct. 29 2007-Nov. 2 2007
Firstpage :
303
Lastpage :
308
Abstract :
High-speed legged locomotion is complicated by the challenge of uneven terrain because the system must respond to the fast-changing terrain elevation under each foot, and quickly secure a solid foothold after touchdown. This paper presents a leg stretch reflex and anti-slip retraction algorithm that are added to a previously presented controller to stabilize a high-speed trot over uneven terrain. Together with fuzzy control and a force redistribution algorithm, these control mechanisms stabilize a quadruped trot at 5.25 m/s. The quadruped can turn at 30 deg/s when running at 3.0 m/s, and can maneuver over uneven terrain with standard deviation of height variation of 3 cm at 4.0 m/s. This appears to be the first reported control of high-speed quadrupedal running over uneven terrain.
Keywords :
fuzzy control; legged locomotion; anti-slip retraction algorithm; fast-changing terrain elevation; force redistribution algorithm; fuzzy control; high-speed legged locomotion; high-speed quadrupedal running; high-speed trot; solid foothold; uneven terrain; Aerodynamics; Animals; Contacts; Control systems; Foot; Force control; Fuzzy control; Leg; Legged locomotion; Vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Robots and Systems, 2007. IROS 2007. IEEE/RSJ International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-0912-9
Electronic_ISBN :
978-1-4244-0912-9
Type :
conf
DOI :
10.1109/IROS.2007.4399496
Filename :
4399496
Link To Document :
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