Abstract
This paper deals with a control framework based on passive-decomposition of bilateral teleoperation which is constructed of a single master
robot and multiple slave robots with constant time delay.
At first, using passive-decomposition,we decompose the dynamics of multiple slave robots into two decoupled dynamics:the Shape-system describing dynamics of the cooperative works,and the Locked-system representing overall behavior of the multiple slave robots.Secondly, we propose a PID control for shape-system and a PID-type control for
Locked-System and Master to guarantee the stability of them with constant time delay .