Raffaele Di Martino - Academia.edu (original) (raw)
Uploads
Papers by Raffaele Di Martino
Fifth IFAC Symposium on Advances in Automotive Control (2007), 2007
A study on optimal energy management on a hybrid solar vehicle (HSV) with series structure is pre... more A study on optimal energy management on a hybrid solar vehicle (HSV) with series structure is presented. Previous results obtained by optimal design analysis for HSV have confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. In order to develop a supervisory control for a HSV prototype now under development at University of Salerno, a study on the performance achievable by an intermittent use of the ICE powering the electric generator is presented. In particular, the effects of engine thermal transient on fuel consumption are studied and discussed. The optimal ICE power trajectory is found by solving a non-linear constrained optimization that suitably accounts for fuel mileage and state of charge, also considering solar contribution during parking mode.
A study on optimal energy management on a Hybrid Solar Vehicle (HSV) with series structure is pre... more A study on optimal energy management on a Hybrid Solar Vehicle (HSV) with series structure is presented. Previous results obtained by optimal design analysis for HSV confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. In order to develop a supervisory control for a HSV prototype under development at University of Salerno, a study on the performance achievable by an intermittent use of the ICE powering the electric generator is presented. In particular, the effects of engine thermal transients on fuel consumption and HC emissions are studied and discussed. The optimal ICE power trajectory is found by solving a non-linear constrained optimization that suitably accounts for fuel mileage and state of charge, also considering solar contribution during parking mode.
dimec.unisa.it
Sommario L'articolo presenta, con taglio divulgativo, l'evoluzione dei veicoli "alternativi" alle... more Sommario L'articolo presenta, con taglio divulgativo, l'evoluzione dei veicoli "alternativi" alle auto convenzionali. Dopo un breve riepilogo delle caratteristiche dei motori a combustione interna e della loro evoluzione storica, si richiamano i limiti di questa soluzione e le motivazioni che hanno spinto verso la ricerca di strade alternative, ripercorrendone gli sviluppi. Le recenti evoluzioni dei sistemi di propulsione dei veicoli stradali hanno permesso di migliorare sia le prestazioni che i consumi di combustibile, riducendo drasticamente le emissioni inquinanti allo scarico nel giro di pochi decenni, e con benefici rilevanti in termini di sicurezza e comfort. Tuttavia le crescenti preoccupazioni legate al depauperamento dei combustibili fossili ed all'effetto serra, con le sue pericolose ricadute sul clima del pianeta, rendono evidenti i limiti degli attuali autoveicoli, spingendo in tal modo verso la ricerca di soluzioni alternative. Finora i motori a combustione interna hanno prevalso sui loro possibili competitori principalmente grazie alla maggiore autonomia ed affidabilità, nonché al consolidamento tecnologico raggiunto. Tra le proposte alternative, particolare rilievo assumono i veicoli elettrici, caratterizzati dall'assenza di emissioni gassose ed acustiche a bordo ma da un'ancora scarsa autonomia. Questo limite può essere superato con i veicoli ibridi, nella cui struttura coesistono un motore termico ed un motore/generatore elettrico. Acquista, inoltre, una maggiore concretezza la possibile integrazione con la fonte solare fotovoltaica, che può contribuire ulteriormente a ridurre consumi ed emissioni. Nel medio/lungo termine, l'utilizzo dell'idrogeno come vettore energetico e delle fuel-cell rappresenta un'alternativa di grande interesse, ma la sua diffusione su larga scala richiede la soluzione dei complessi problemi legati alla produzione ed alla distribuzione dell'idrogeno. Ma lo studio di possibili alternative alle auto convenzionali non è iniziato di recente: numerosi veicoli elettrici furono costruiti alla fine dell'800, quando apparvero anche alcuni prototipi di veicolo ibrido, mentre i primi studi sulle fuel-cell risalgono addirittura al 1839. E, mentre i primi veicoli solari risalgono agli anni '80, diverse tipologie alternative di motori termici (a turbina, Stirling, Wankel) sono state proposte nel corso del '900, con motivazioni diverse dalle attuali, ma con un successo relativamente scarso.
Oil & Gas Science and Technology – Revue de l’Institut Français du Pétrole, 2010
ON THE USE OF GENETIC ALGORITHM TO OPTIMIZE THE ON-BOARD ENERGY MANAGEMENT OF A HYBRID SOLAR VEHI... more ON THE USE OF GENETIC ALGORITHM TO OPTIMIZE THE ON-BOARD ENERGY MANAGEMENT OF A HYBRID SOLAR VEHICLE-This paper deals with the development of a prototype of Hybrid Solar Vehicle (HSV) with series structure. This activity has been also conducted in the framework of the EU funded Leonardo project "Energy Conversion Systems and Their Environmental Impact", a project with research and educational objectives. A study on supervisory control for hybrid solar vehicles and some preliminary tests performed on the road are presented. Previous results obtained by a model for HSV optimal design have confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. Due to the series-powertrain adopted for the HSV prototype, an intermittent use of the ICE powering the electric generator is possible, thus avoiding part-load low-efficient engine operations. The best ICE power trajectory is determined via genetic algorithm optimization accounting for fuel mileage as well as battery state of charge, also considering solar contribution during parking mode. The experimental set up used for data logging, real-time monitoring and control of the prototype is also presented, and the results obtained with different road tests discussed.
This study, carried out in cooperation with ESSAIM, Ecole Superieure des Sciences Appliquees pour... more This study, carried out in cooperation with ESSAIM, Ecole Superieure des Sciences Appliquees pour l'Ingenieur, Mulhouse in France, was aimed at developing accurate mathematical models of some types of tyre, in order to analyze their influence on vehicle dynamics. The complete vehicle was studied under dynamic conditions, to quantify the influence of all factors, such as rolling forces, aerodynamic forces and many others, acting on their components on torque distribution and vehicle dynamics. Mathematical models for two common types of vehicle, namely front and rear wheel drive, each ones equipped with the different types of tyre, were developed. Both models were used to simulate the behaviour of a real vehicle, developing complete simulation software, developed in Matlab-Simulink environment at MIPS, Modelisation Intelligence Processus Systemes. Therefore, this car model, running on a straight and curve track, was also developed, to get a qualitative insight of the influence of ...
Fifth IFAC Symposium on Advances in Automotive Control (2007), 2007
A study on optimal energy management on a hybrid solar vehicle (HSV) with series structure is pre... more A study on optimal energy management on a hybrid solar vehicle (HSV) with series structure is presented. Previous results obtained by optimal design analysis for HSV have confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. In order to develop a supervisory control for a HSV prototype now under development at University of Salerno, a study on the performance achievable by an intermittent use of the ICE powering the electric generator is presented. In particular, the effects of engine thermal transient on fuel consumption are studied and discussed. The optimal ICE power trajectory is found by solving a non-linear constrained optimization that suitably accounts for fuel mileage and state of charge, also considering solar contribution during parking mode.
A study on optimal energy management on a Hybrid Solar Vehicle (HSV) with series structure is pre... more A study on optimal energy management on a Hybrid Solar Vehicle (HSV) with series structure is presented. Previous results obtained by optimal design analysis for HSV confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. In order to develop a supervisory control for a HSV prototype under development at University of Salerno, a study on the performance achievable by an intermittent use of the ICE powering the electric generator is presented. In particular, the effects of engine thermal transients on fuel consumption and HC emissions are studied and discussed. The optimal ICE power trajectory is found by solving a non-linear constrained optimization that suitably accounts for fuel mileage and state of charge, also considering solar contribution during parking mode.
dimec.unisa.it
Sommario L'articolo presenta, con taglio divulgativo, l'evoluzione dei veicoli "alternativi" alle... more Sommario L'articolo presenta, con taglio divulgativo, l'evoluzione dei veicoli "alternativi" alle auto convenzionali. Dopo un breve riepilogo delle caratteristiche dei motori a combustione interna e della loro evoluzione storica, si richiamano i limiti di questa soluzione e le motivazioni che hanno spinto verso la ricerca di strade alternative, ripercorrendone gli sviluppi. Le recenti evoluzioni dei sistemi di propulsione dei veicoli stradali hanno permesso di migliorare sia le prestazioni che i consumi di combustibile, riducendo drasticamente le emissioni inquinanti allo scarico nel giro di pochi decenni, e con benefici rilevanti in termini di sicurezza e comfort. Tuttavia le crescenti preoccupazioni legate al depauperamento dei combustibili fossili ed all'effetto serra, con le sue pericolose ricadute sul clima del pianeta, rendono evidenti i limiti degli attuali autoveicoli, spingendo in tal modo verso la ricerca di soluzioni alternative. Finora i motori a combustione interna hanno prevalso sui loro possibili competitori principalmente grazie alla maggiore autonomia ed affidabilità, nonché al consolidamento tecnologico raggiunto. Tra le proposte alternative, particolare rilievo assumono i veicoli elettrici, caratterizzati dall'assenza di emissioni gassose ed acustiche a bordo ma da un'ancora scarsa autonomia. Questo limite può essere superato con i veicoli ibridi, nella cui struttura coesistono un motore termico ed un motore/generatore elettrico. Acquista, inoltre, una maggiore concretezza la possibile integrazione con la fonte solare fotovoltaica, che può contribuire ulteriormente a ridurre consumi ed emissioni. Nel medio/lungo termine, l'utilizzo dell'idrogeno come vettore energetico e delle fuel-cell rappresenta un'alternativa di grande interesse, ma la sua diffusione su larga scala richiede la soluzione dei complessi problemi legati alla produzione ed alla distribuzione dell'idrogeno. Ma lo studio di possibili alternative alle auto convenzionali non è iniziato di recente: numerosi veicoli elettrici furono costruiti alla fine dell'800, quando apparvero anche alcuni prototipi di veicolo ibrido, mentre i primi studi sulle fuel-cell risalgono addirittura al 1839. E, mentre i primi veicoli solari risalgono agli anni '80, diverse tipologie alternative di motori termici (a turbina, Stirling, Wankel) sono state proposte nel corso del '900, con motivazioni diverse dalle attuali, ma con un successo relativamente scarso.
Oil & Gas Science and Technology – Revue de l’Institut Français du Pétrole, 2010
ON THE USE OF GENETIC ALGORITHM TO OPTIMIZE THE ON-BOARD ENERGY MANAGEMENT OF A HYBRID SOLAR VEHI... more ON THE USE OF GENETIC ALGORITHM TO OPTIMIZE THE ON-BOARD ENERGY MANAGEMENT OF A HYBRID SOLAR VEHICLE-This paper deals with the development of a prototype of Hybrid Solar Vehicle (HSV) with series structure. This activity has been also conducted in the framework of the EU funded Leonardo project "Energy Conversion Systems and Their Environmental Impact", a project with research and educational objectives. A study on supervisory control for hybrid solar vehicles and some preliminary tests performed on the road are presented. Previous results obtained by a model for HSV optimal design have confirmed the relevant benefits of such vehicles with respect to conventional cars in case of intermittent use in urban driving (city-car), and that economical feasibility could be achieved in a near future. Due to the series-powertrain adopted for the HSV prototype, an intermittent use of the ICE powering the electric generator is possible, thus avoiding part-load low-efficient engine operations. The best ICE power trajectory is determined via genetic algorithm optimization accounting for fuel mileage as well as battery state of charge, also considering solar contribution during parking mode. The experimental set up used for data logging, real-time monitoring and control of the prototype is also presented, and the results obtained with different road tests discussed.
This study, carried out in cooperation with ESSAIM, Ecole Superieure des Sciences Appliquees pour... more This study, carried out in cooperation with ESSAIM, Ecole Superieure des Sciences Appliquees pour l'Ingenieur, Mulhouse in France, was aimed at developing accurate mathematical models of some types of tyre, in order to analyze their influence on vehicle dynamics. The complete vehicle was studied under dynamic conditions, to quantify the influence of all factors, such as rolling forces, aerodynamic forces and many others, acting on their components on torque distribution and vehicle dynamics. Mathematical models for two common types of vehicle, namely front and rear wheel drive, each ones equipped with the different types of tyre, were developed. Both models were used to simulate the behaviour of a real vehicle, developing complete simulation software, developed in Matlab-Simulink environment at MIPS, Modelisation Intelligence Processus Systemes. Therefore, this car model, running on a straight and curve track, was also developed, to get a qualitative insight of the influence of ...