Coupled Control Lyapunov Functions for Interconnected Systems, With Application to Quadrupedal Locomotion
Coupled Control Lyapunov Functions for Interconnected Systems, With Application to Quadrupedal Locomotion
复制标题
互连系统的耦合控制李亚普诺夫函数及其在四足运动中的应用
DOI:
10.1109/lra.2021.3065174
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发表时间:
2021
影响因子:
5.2
通讯作者:
Ames, Aaron D.
中科院分区:
文献类型:
--
作者:
Ma, Wen-Loong;Csomay-Shanklin, Noel;Kolathaya, Shishir;Hamed, Kaveh Akbari;Ames, Aaron D.
This letter addresses the problem of formally guaranteeing the stability of interconnected systems with local controllers with a view toward stabilizing quadrupeds viewed as coupled bipeds. In particular, we present a novel framework that views general rigid-body systems as a collection of lower-dimensional systems that are coupled via reaction forces. Stabilizing the corresponding coupled control system can thus be addressed by stabilizing each subsystem coupled through the passive dynamics. The main results of the letter are stability conditions that guarantee convergence for each control subsystem by formulating coupled control Lyapunov functions (CCLFs) using the notion of input-to-state stability (ISS). This theoretical result is illustrated via a simple cart-pole example, where exponential stability is obtained. Next, building on previous results where an 18-DOF quadrupedal robot is decomposed into two interconnected bipedal systems for efficient periodic gait generation, we design model-free quadratic programs (QPs) using the CCLFs to stabilize the continuous dynamics and thus achieve experimental walking and simulated hopping and running on the Vision 60 quadrupedal robot.
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DOI:
10.1007/978-3-319-15171-7
发表时间:
2015-04
期刊:
2014 Ninth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing
影响因子:
--
作者:
T. Hatanaka;N. Chopra;M. Fujita;M. Spong
通讯作者:
T. Hatanaka;N. Chopra;M. Fujita;M. Spong
DOI:
--
发表时间:
2019
期刊:
IEEE/RJS International Conference on Intelligent RObots and Systems
影响因子:
--
作者:
Shishir N Y Kolathaya;Sushant Veer
通讯作者:
Sushant Veer
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Shishir Nadubettu Yadukumar
通讯作者:
Shishir Nadubettu Yadukumar
DOI:
10.23919/acc45564.2020.9147673
发表时间:
2020
期刊:
American Control Conference (ACC
影响因子:
--
作者:
Hamed, Kaveh Akbari;Kamidi, Vinay R.;Pandala, Abhishek;Ma, Wen-Loong;Ames, Aaron D.
通讯作者:
Ames, Aaron D.
DOI:
--
发表时间:
2018
期刊:
American Control Conference
影响因子:
--
作者:
Shishir N Y Kolathaya;Jake Reher;Ayonga Hereid;A. Ames
通讯作者:
A. Ames