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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...
This paper studies the coordinated manipulator and spacecraft motion planning for free-floating space robots (FFSR). The kinematics of the FFSR is analyzed based on momentum conservation law firstly. Then a nonholonomic motion planning, including requirements on spacecraft's orientation and end-effector's position is proposed using the chained form transformation and time-state control form. A planar...
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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