Abstract

This paper describes a gait pattern generation and the mechanisms of a biped humanoid robot that has 42 DOFs in total. The movable angles of the joints of the biped robot are about the same as those of a human. Its height is 1.66 [m] and its weight is 62.5 [kg]. If disturbance forces are applied to the waist when the robot is walking, the robot should change its step length to control its balance and not fall down. The gait pattern consists of a leg trajectory, an arm trajectory, and a waist trajectory is created using a fuzzy control rule. A waist trajectory that can cancel the moments generated by the motion of the legs is also determined by using the preview control. To confirm the efficacy of the gait pattern, walking simulations were conducted using MATLAB/Simlink and ADAMS.

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