Desarrollo de ciclos de conducción en ciudad, carretera y combinado para evaluar el rendimiento real del combustible de un vehículo con motor de ciclo Otto en el Distrito Metropolitano De Quito

Abstract

This paper proposes the development of driving cycles for obtaining real values of fuel consumption in the Metropolitan District of Quito. The vehicle used was instrumented with a global positioning system and a canister in order to systematically navigate a set of previously selected tracks and to obtain information about distance travelled, travel time, average speed, among others; this information was processed through statistical analysis by the minimization of weighted averages, resulting in representative cycles for the Metropolitan District of Quito. The driving cycles obtained were validated by tests in three real scenarios with different traffic conditions, proving to be statistically repeatable and reproducible, as well as having a high reliability of 99.7% of the measurements taken during each procedure. The results show that city fuel consumption is higher (20,84 MPG), compared to the combined cycle (24,08 MPG) and the extra urban cycle (31,26 MPG). On the other hand, to carry out this study a comparison was performed between the fuel consumption obtained in the cycles of the Metropolitan District of Quito and those indicated by the vehicle manufacturer, resulting in marked differences between the two. On average, the values of the Metropolitan District of Quito cycles are greater in a 36 %.