We consider the time optimal stabilization problem for a nonlinear control system ẋ = f(x, u). Let τ(y) be the minimum time needed to steer the system from the state y ∈ R to the origin, and call A(T ) the set of initial states that can be steered to the origin in time τ(y) ≤ T . Given any ε > 0, in this paper we construct a patchy feedback u = U(x) such that every solution of ẋ = f(x, U(x)), x...

A principal requirement for multimedia networks is the ability to allocate resources to network services with diierent quality{of{service demands. The objectives of achieving eecient resource utilization, providing quality{of{service guarantees, and adapting to changes in traac statistics make performance management for multimedia networks a challenging endeavor. In this paper, we address the f...

We study the boundary controllability of a nonlinear Korteweg–de Vries equation with the Dirichlet boundary condition on an interval with a critical length for which it has been shown by Rosier that the linearized control system around the origin is not controllable. We prove that the nonlinear term gives the local controllability around the origin.

This paper describes an architecture for a system for machining and inspecting mechanical piece parts and an implementation of it called the Feature-Based Inspection and Control System (FBICS). In FBICS, the controller of a machining center or coordinate measuring machine uses a standard feature-based description of the shape of the object to be made as a principal input for machining and/or in...

We assume, for a distributed parameter control system, that a linear stabilizing feedback is available. We then seek a stabilizing feedback, necessarily nonlinear, subject to an a priori bound on the control.

In this paper, we apply the interconnection and damping assignment passivity—based control design technique to the underactuated mechanical system called pendubot. The proposed control system drives a class of pendubot systems to the upward configuration, starting from a neighborhood of this configuration. Simulation results show the performance of the proposed control system.

Focusing on the influence made by the time-delay of networked control systems to the system performance and the problems that we are unable to obtain controlled object with all state information in industrial field, a new algorithm to compensate the bad effect caused by the network time-delay is proposed based on the grey prediction method to predict the output of the controlled object at futur...

We consider a networked control system (NCS)consisting of two plants, a global plant and a local plant,and two controllers, a global controller and a local controller.The global (resp. local) plant follows discrete-time stochasticallyswitched linear dynamics with a continuous global (resp. local)state and a discrete global (resp. local) mode. We assume thatthe state and ...

In this paper, we propose a control system for object grasping tasks performed by the multifingered robot hand. Unlike previous systems, which were built using force control based on mechanical and dynamic analyses, this system is built using position control. The variable stiffness compliance control we propose is used as the grasp controller, and the system is able to perform all approach, co...

Most control system are influenced by static nonlinearities. It is important for an engineer to understand which is the effect of these nonlinearities. Unfortunatelly most handson laboratory can not be used for these type of experiences. In this paper it is described an ongoing project which adapts most conventional experimental setups to allow them to be used for nonlinear experiencies. In par...