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Neural Network Based Contact Force Control Algorithm for Walking Robots
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Neural Network Based Contact Force Control Algorithm for Walking Robots
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Journal Article
Neural Network Based Contact Force Control Algorithm for Walking Robots
2021
Overview
Walking algorithms using push-off improve moving efficiency and disturbance rejection performance. However, the algorithm based on classical contact force control requires an exact model or a Force/Torque sensor. This paper proposes a novel contact force control algorithm based on neural networks. The proposed model is adapted to a linear quadratic regulator for position control and balance. The results demonstrate that this neural network-based model can accurately generate force and effectively reduce errors without requiring a sensor. The effectiveness of the algorithm is assessed with the realistic test model. Compared to the Jacobian-based calculation, our algorithm significantly improves the accuracy of the force control. One step simulation was used to analyze the robustness of the algorithm. In summary, this walking control algorithm generates a push-off force with precision and enables it to reject disturbance rapidly.
Publisher
MDPI AG,MDPI
Subject
