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http://dx.doi.org/10.5302/J.ICROS.2012.18.3.258

Biped Walking of Hydraulic Humanoid Robot on Inclined Floors  

Kim, Jung-Yup (Seoul National University of Science and Technology)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.18, no.3, 2012 , pp. 258-266 More about this Journal
Abstract
This paper describes a biped walking algorithm for a hydraulic humanoid robot on inclined floors. To realize stable and robust biped walking, the walking algorithm was divided into five control strategies. The first is a joint position control strategy. This strategy is for tracking desired joint position trajectories with a gain switching. The second is a multi-model based ZMP (Zero Moment Point) control strategy for dynamic balance. The third is a walking pattern flow control strategy for smooth transition from step to step. The fourth is an ankle compliance control, which increases the dynamic stability at the moment of floor contact. The last is an upright pose control strategy for robust walking on an inclined floor. All strategies are based on simple pendulum models and include practical sensory feedback in order to implement the strategies on a physical robot. Finally, the performance of the control strategies are evaluated and verified through dynamic simulations of a hydraulic humanoid on level and inclined floors.
Keywords
hydraulic humanoid robot; biped walking; inclined floor; ZMP;
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Times Cited By KSCI : 2  (Citation Analysis)
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