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That is why we first had to obtain the characteristic of resistant power of the vehicle depending on speed

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Titolo

Metodologia per l’analisi comparativa sperimentale di confronto energetico ambientale tra veicoli a benzina ed ibridi

Sommario

Scopo del presente lavoro è effettuare un’analisi comparativa, sulla base di dati sperimentali delle prestazioni energetico-ambientali, tra un veicolo a benzina ed uno ibrido. L’obiettivo iniziale del lavoro è stato quindi quello di mettere a punto una metodologia di calcolo che permetta di ricavare, da dati energetici misurati e ricavati direttamente dalla centralina elettronica del veicolo, la progressiva dell’arco stradale percorso. A tal fine si è ricavata sperimentalmente la curva di potenza resistente del veicolo in funzione della velocità. La seconda parte del lavoro ha come obiettivo principale quello di valutare, sulla base di dati sperimentalmente acquisiti, i benefici, sia in termini energetici che emissivi, garantiti dalla presenza dell’unità elettrica in un veicolo ibrido. In particolare si è validato un semplice modello matematico in grado di simulare il comportamento in fase di erogazione dell’unità elettrica. Si sono successivamente quantificati il risparmio stimato di combustibile e le emissioni differenziali garantite dall’intervento dell’elettrico. Infine si è valutata sperimentalmente l’efficienza del sistema di stop and start di cui è dotato il veicolo.

Title

Methodology foe the experimental comparative analysis of the energetic environmental comparison between fuel vehicles and hybrids

Abstract

The purpose of this work is to make an experimental comparative analysis of the energetic environmental performances between a fuel vehicle and an hybrid. At the beginning we developed a calculus methodology that allowed us to obtain from energetic data, got from the engine control unit, the inclination of the droven road.

That is why we first had to obtain the characteristic of resistant power of the vehicle depending on speed. Then our purpose was to evaluate, on the basis of experimental data, the energetic and environmental advantages given from the electric engine in an hybrid vehicle. In particular we verified a mathematical model able to simulate the behaviour in phase of power supply of the electrical unit.

Afterwards we quantified the energy conservation and the differential emissions guaranteed from the electric engine. Finally we experimentally evaluated the efficiency of the “stop and start” system which is in the vehicle.

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