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논문 기본 정보

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(서울과학기술대학교) (서울과학기술대학교) (서울과학기술대학교) (서울과학기술대학교)
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제어로봇시스템학회 제어로봇시스템학회 논문지 제어로봇시스템학회 논문지 제30권 제10호
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    초록·키워드

    This paper proposes a walking strategy that integrates Model Predictive Control (MPC) and Whole-Body Control (WBC) based on a single rigid body model. Additionally, it develops and utilizes a novel state estimator based on LSTM deep learning instead of the commonly used Kalman filter–based state estimator. MPC and WBC are methods that enable walking robots to perform various tasks without falling. Therefore, this study uses MPC based on a single rigid body model to derive the optimal ground reaction force. Subsequently, in WBC, constraints are added to satisfy robot dynamics equations and track the optimal ground reaction force. Finally, through WBC, the optimal joint torque is computed considering whole-body floating dynamics and optimal ground reaction forces. All of these computations are performed based on the newly developed deep learning–based state estimator. The proposed control strategy is validated through Gazebo simulation using a quadruped walking robot, Go2.

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