Simona Sacone

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A class of production systems are considered in this paper with the aim of determining closed-loop strategies providing the production effort as functions of the system state. The key feature of the considered class of systems is that the demand and the way it is satisfied are asynchronous sequences of part requests and instantaneous withdrawals,(More)
In this paper we present two mathematical formulations and a heuristic approach for the train load planning problem of import containers at a seaport container terminal. The problem consists of determining how to assign a set of containers of different length and weight to the wagons of a train in order to satisfy capacity constraints of both the wagons and(More)
Objective of this paper is to define an efficient control framework for freeway systems based on ramp metering. First of all, a Model Predictive Control (MPC) scheme is proposed in which the well known nonlinear cell transmission model (CTM) is used for the prediction. The model is then reformulated as a mixed logical dynamical (MLD) system, i.e. it is(More)
This paper proposes a freeway traffic controller with the objective of minimizing, at the same time, congestion phenomena and traffic emissions. A multi-class framework is considered in the paper, i.e two classes of vehicles (cars and trucks) are explicitly modelled and specific control actions for each vehicle class are computed. The controller is based on(More)
The objective of the present paper is that of defining a modelling and control framework for freeway traffic in which several vehicle classes are explicitly taken into account. To this end, a multiclass model representing the dynamic behaviour of traffic in a freeway stretch is proposed. In such a model, based on a classical macroscopic model, vehicles are(More)
The objective of this paper is the design of a stabilizing switching control scheme for a class of nonlinear systems. Such systems are relevant to nonlinear plants represented by means of a finite set of nonlinear discrete-time models. A finite set of receding-horizon control laws is defined for each of the nonlinear discrete-time models representing the(More)
The objective of the paper is the design of a stabilizing switching control scheme for a class of nonlinear systems. Such systems are characterized by means of a finite set of nonlinear discrete-time models and for each model a finite set of receding-horizon nonlinear control laws is defined. This highlights a major feature of the considered class of(More)