Cooperative Control for Multiple Manipulators Using an Extended Passive Velocity Field Control

Abstract

In this paper, we propose a new cooperative control method for multiple robotic systems that eliminates several issues in the discentralized control method. The proposed control method is constructed by extending a Passive Velocity Field Control (PVFC). It is easy to guarantee the stability in control, because the PVFC can keep the passivity of the controlled system. In this study, the cooperative control method is proposed and then it's stability is proven. Moreover, it is extended so as to control an internal force and to control a virtual time. Finally, the efficiency of the proposed cooperative control method are examined by computer simulations for cooperation tasks with two manipulators.