Hybrid Systems Differential Dynamic Programming for Whole-Body Motion Planning of Legged Robots
Hybrid Systems Differential Dynamic Programming for Whole-Body Motion Planning of Legged Robots
复制标题
用于腿式机器人全身运动规划的混合系统微分动态规划
DOI:
10.1109/lra.2020.3007475
复制
发表时间:
2020
影响因子:
5.2
通讯作者:
Wensing, Patrick M.
中科院分区:
文献类型:
--
作者:
Li, He;Wensing, Patrick M.
This letter presents a Differential Dynamic Programming (DDP) framework for trajectory optimization (TO) of hybrid systems with state-based switching. The proposed Hybrid Systems DDP (HS-DDP) approach is considered for application to whole-body motion planning with legged robots. Specifically, HS-DDP incorporates three algorithmic advances: an impact-aware DDP step addressing the impact event in legged locomotion, an Augmented Lagrangian (AL) method dealing with the switching constraint, and a Switching Time Optimization (STO) algorithm that optimizes switching times by leveraging the structure of DDP. Further, a Relaxed Barrier (ReB) method is used to manage inequality constraints and is integrated into HS-DDP for locomotion planning. The performance of the developed algorithms is benchmarked on a simulation model of the MIT Mini Cheetah executing a bounding gait. We demonstrate the effectiveness of AL and ReB for handling switching constraints, friction constraints, and torque limits. By comparing to previous solutions, we show that the STO algorithm achieves 2.3 times more reduction of total switching times, demonstrating the efficiency of our method.
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DOI:
10.1109/iros.2003.1248926
发表时间:
2003-12
期刊:
SICE 2003 Annual Conference (IEEE Cat. No.03TH8734)
影响因子:
--
作者:
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通讯作者:
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发表时间:
2005
期刊:
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影响因子:
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通讯作者:
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DOI:
10.1109/iros40897.2019.8967788
发表时间:
2019-11
期刊:
2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
影响因子:
--
作者:
Taylor A. Howell;Brian E. Jackson;Zachary Manchester
通讯作者:
Taylor A. Howell;Brian E. Jackson;Zachary Manchester
DOI:
10.1109/21.214783
发表时间:
1993
期刊:
IEEE Trans. Syst. Man Cybern.
影响因子:
--
作者:
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通讯作者:
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