Yr. Hu et al., MOTION AND FORCE CONTROL OF COORDINATED ROBOTS DURING CONSTRAINED MOTION TASKS, The International journal of robotics research, 14(4), 1995, pp. 351-365
Citations number
27
Categorie Soggetti
Computer Application, Chemistry & Engineering","Controlo Theory & Cybernetics","Robotics & Automatic Control
The motion of coordinated robots manipulating an object constrained by
the contact with an environment, in the presence of uncertainty in th
e dynamic models, represents an important class of control problems. I
n this article an approach to motion and force control of such multipl
e coordinated robots, based on an adaptive scheme, is proposed. Three
major variables are regulated simultaneously: the object motion, the c
ontact force between the object and the environment, and the internal
force. The adaptive controller estimates the unknown parameters of the
coordinated robots and object in terms of certain error equations. Th
e convergence of the motion, contact, and internal force errors is ana
lyzed using Lyapunov stability theory. The proposed controller is also
experimentally evaluated on two coordinated AdeptOne robots. In compa
rison with fixed parameter controllers, the experimental results show
that the proposed controller improves the object motion, contact, and
internal force tracking accuracy for a class of robotic systems with u
ncertain knowledge of the dynamic model.