Análisis del consumo específico de combustible respecto a diferentes valores de alineación de neumáticos en la conducción de un vehículo tipo m1

Abstract

According to previous studies, tire pressure and alignment significantly influence fuel consumption. Therefore, in this research, the analysis of specific fuel consumption was carried out with respect to different tire pressure and alignment values for a type M1 vehicle. In the investigative process, the test vehicle was adapted to standard conditions, selecting the instruments and equipment to modify the inflation pressure and vary the convergence and camber angles. Test routes similar to a NEDC driving cycle and specific experimental conditions were then implemented, with 3 repetitions in order to ensure the reliability of the data. Finally, the information was recorded using an OBDII device for analysis using a mathematical model, using MATLAB to calculate fuel consumption. The results show an increase in fuel consumption percentages in tire pressure variations of 1.25% for 30.5 km. In the case of convergence it increases by 24.85% over a 43 km run and for superelevation it increases by 31.23% over a travel distance of 43.4 km. Which means that there is high fuel consumption at pressures and angles not specified by the manufacturer.