Learning Hybrid Models for Variable Impedance Control of Changing-Contact Manipulation Tasks
Learning Hybrid Models for Variable Impedance Control of Changing-Contact Manipulation Tasks
复制标题
学习用于变化接触操作任务的可变阻抗控制的混合模型
DOI:
--
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Saif Sidhik
中科院分区:
文献类型:
--
作者:
Saif Sidhik
Many robot manipulation tasks comprise discrete action sequences characterized by continuous dynamics, while the transitions between these discrete dynamic modes are characterized by discontinuous dynamics. The individual modes may represent different types of contacts, surfaces, or other factors, and each mode and transition between the modes may require a different control strategy. This paper describes a piece-wise continuous, hybrid control framework for such manipulation tasks. The underlying representation enables the robot to automatically and efficiently detect the transitions between known modes, recognize new modes, and incrementally learn a dynamics model for variable impedance (i.e., stiffness) control in each mode, invariant to the direction of motion and the magnitude of applied forces. The framework is evaluated on a robot manipulator sliding an object along a surface to achieve a desired motion trajectory in the presence of changes in surface friction, applied force, or the type of contact between the object and the surface.
DOI:
--
发表时间:
2019-07
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
Oliver Kroemer;S. Niekum;G. Konidaris
通讯作者:
Oliver Kroemer;S. Niekum;G. Konidaris
DOI:
--
发表时间:
2017
期刊:
arXiv.org
影响因子:
--
作者:
Lee, Gilwoo;Marinho, Zita;Johnson, Aaron M.;Gordon, Geoff J.;Srinivasa, Siddhartha S.;Mason, Matthew T.
通讯作者:
Mason, Matthew T.