Variable compliance control with posture stabilization for biped robot

Abstract

This paper describes a gait control based on variable compliance for a biped robot walking on uneven terrain. The variable compliance changes the stiffness using the zero moment point for each sole and the three-dimensional zero moment point of the vertical ground reaction force. This paper also describes the postural stability control method of the robot, which obtains the depth map and uses the feature extraction and depth information. The experimental results using a 12-degree-of-freedom bipedal robot are provided to evaluate the proposed methods.