Yiming Cui , Tianjiao An , Bo Dong , Bing Ma , Zhenguo Zhang
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引用次数: 0
Abstract
This paper introduces a bilayer nonzero-sum differential game-based optimal control framework for a Modular Robot Manipulator (MRM) in Human–Robot Collaboration (HRC) tasks. The dynamic model of the MRM is obtained with the Joint Torque Feedback (JTF) technique. Consider the -player nonzero-sum differential game within the MRM subsystems and the 2-player nonzero-sum differential game involving both the MRM and human collaborators in HRC tasks as the inner and outer layers of the bilayer nonzero-sum differential game. The Nash equilibrium solutions for the inner and outer layers of the nonzero-sum differential games are independently determined using the Adaptive Dynamic Programming (ADP) algorithm, which is based on a fuzzy logic system. As a result, optimal control policies for MRM subsystems and the optimal interaction force in HRC tasks are derived. The trajectory tracking error of the MRM system and the outer layer physical Human–Robot Interaction (pHRI) system have both been proven to be Ultimately Uniformly Bounded (UUB) under the bilayer nonzero-sum differential game-based optimal control of MRM for HRC with the application of Lyapunov theory. Finally, experiment results are presented to validate the superiority and effectiveness of the proposed method.
期刊介绍:
The European Control Association (EUCA) has among its objectives to promote the development of the discipline. Apart from the European Control Conferences, the European Journal of Control is the Association''s main channel for the dissemination of important contributions in the field.
The aim of the Journal is to publish high quality papers on the theory and practice of control and systems engineering.
The scope of the Journal will be wide and cover all aspects of the discipline including methodologies, techniques and applications.
Research in control and systems engineering is necessary to develop new concepts and tools which enhance our understanding and improve our ability to design and implement high performance control systems. Submitted papers should stress the practical motivations and relevance of their results.
The design and implementation of a successful control system requires the use of a range of techniques:
Modelling
Robustness Analysis
Identification
Optimization
Control Law Design
Numerical analysis
Fault Detection, and so on.