Comparative study on the fuel consumption of road vehicles equipped with thermal engines

Abstract

The scientific paper presents a concrete research carried out by the author in order to implement some concepts, in wich technical aspects (theoretical and practical) are presented regarding the specific normed fuel consumption of thermal engines with spark ignition and compression ignition from road vehicles. In this way, those interested can learn about the amount of gasoline or diesel fuel determed on the basis of the second order active type experiment, wich is consumed by vehicle per 100 km traveled in real terms, taken in comparison with an average consumption of fuel approved by the manufacturer of each car using the WLTP method. In parallel with this research, experiments were carried out on cars and on the average fuel consumption under the conditions of the requirements of the World Health Organization to reduce the speed of traffic of road vehicles in the urban environment from 50 km/h to 30 km/h with the purpose of reducing the number of traffic accidents and the noise emitted by road vehicles. For the research, a sample of cars from the national car park was used as measurable entity, wich includes all the vehicles belonging to the owners (individuals) and legal entities (road transport organizations), at the national level. Finally, the conclusions in the adressed field are presented

Keywords

• spark ignition engine
• compression ignition engine
• motor vehicle
• fuel consumption. active type experiment
• traffic speed.