Debalina Ghosh - IEEE Xplore Author Profile

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While modern quadruped robots can jump or even somersault, without proper control, landing from the air could cause serious impacts and damages to both the mechanical and electrical components of robots. The landing process often faces different robot's poses and velocities, e.g., vertical, horizontal, and/or pitch movements, as well as contact phase change, e.g., from initial two-leg contact to f...Show More
Wheeled-bipedal robots without roll joints on legs, such as Handle by Boston Dynamics and Ascento by ETH, have drawn increasing attention due to their superior motion agility but pose unique challenges to motion generation. So far, there is little to no research on how to enable these robots to step forward with their legs. In this study, we will explore hybrid stepping locomotion strategies via a...Show More
This paper presents a balance control technique for a novel wheel-legged robot. We first derive a dynamic model of the robot and then apply a linear feedback controller based on output regulation and linear quadratic regulator (LQR) methods to maintain the standing of the robot on the ground without moving backward and forward mightily. To take into account nonlinearities of the model and obtain a...Show More