Bipedal Walking Control using Variable Horizon MPC
Bipedal Walking Control using Variable Horizon MPC
复制标题
使用可变水平 MPC 的双足行走控制
DOI:
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复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
L. Righetti
中科院分区:
文献类型:
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作者:
E. Daneshmand;M. Khadiv;F. Grimminger;L. Righetti
In this paper, we present a novel two-level variable Horizon Model Predictive Control (VH-MPC) framework for bipedal locomotion. In this framework, the higher level computes the landing location and timing (horizon length) of the swing foot to stabilize the unstable part of the center of mass (CoM) dynamics, using feedback from the CoM state. The lower level takes into account the swing foot dynamics and generates dynamically consistent trajectories for landing at the desired time as close as possible to the desired location. To do that, we use a simplified model of the robot dynamics projected in swing foot space that takes into account joint torque constraints as well as the friction cone constraints of the stance foot. We show the effectiveness of our proposed control framework by implementing robust walking patterns on our torque-controlled and open-source biped robot, Bolt. We report extensive simulations and real robot experiments in the presence of various disturbances and uncertainties.
DOI:
10.1109/icra.2019.8794032
发表时间:
2019
期刊:
2019 IEEE International Conference on Robotics and Automation (ICRA
影响因子:
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作者:
Lin, Yu-Chi;Ponton, Brahayam;Righetti, Ludovic;Berenson, Dmitry
通讯作者:
Berenson, Dmitry
影响因子:
5.2
作者:
Grimminger, Felix;Meduri, Avadesh;Righetti, Ludovic
通讯作者:
Righetti, Ludovic