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In this paper we address the turning maneuver technique for a quadruped robot with only the hip pitch and the knee pitch for each leg, and explore characteristics of the mediolateral reaction forces experienced by the robot legs during the stance phase. We propose a turning strategy based on the translation of the hip-knee joint space towards the deepest flexion point. Such a translation can cause...
This paper presents an adaptive control system of central pattern generators (CPG) made of a network of mutually coupled Van Del Pol nonlinear oscillators. The CPG based controller is used to generate stable rhythmical locomotion trajectories. With the sensorial information feedback, a novel adaptive control strategy is implemented to help a quadruped robot with only two rotary Degrees Of Freedom...
In traditional strategy based on Center Pattern Generator (CPG), stance phases and swing phases are always fixed and their durations equal to each other approximately. Few CPG models care about the control of the knee joints under quadrupeds. In view of these deficiencies, this paper presents a model which is used to generate trajectories both for hips and for knees. The model has two desirable properties...
This paper proposed a fuzzy control system based on oscillator networks for the locomotion control of the quadruped robot whose legs have no yaw freedom. The oscillator networks are used to generate stable, synchronized leg gait signal for the locomotion of the robot. The fuzzy controller is introduced to tune the parameters of the oscillator networks for generating adaptive leg motion curve for the...
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