Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
INFLUENCE OF ROAD SLOPES IN THE TURBOCHARGER’S BEHAVIOR
Submission Author:
Marina Fonda , MG
Co-Authors:
Marina Fonda, Larissa Coelho, Jose Baeta, Oscar Ricardo Sandoval Rodriguez
Presenter: Marina Fonda
doi://10.26678/ABCM.COBEM2019.COB2019-0337
Abstract
The pursue for more efficient and less polluting engines have led researchers to adopt strategies to improveinternal combustion engines (ICE). One of these strategies is the use of turbochargers, that provide the supercharge neededto maintain power when emission and weight limit engine projects are applied. In that context, a proper characterizationof turbocharger’s behavior is required in order to guide it’s development. The purpose of this article is to obtain theoperation of a turbocharger associated with a vehicle submitted to a real driving cycle and evaluate the influence of theroad’s slopes. A real driving cycle is obtained in a Brazilian Highway to simulate the turbocharger’s characteristics ona heavy-duty vehicle under usual conditions of a road scenario. The results are obtained first considering the vehicle ina plane surface and, in sequence, in the real road relief. The simulations are made in GT Suite Software, from GammaTechnologies, using the engine and turbocharger data obtained in dynamometer tests,and the vehicle and driving cyclecharacteristics. At the end of the simulation, the turbocharger’s angular speed over time is obtained for both situationsand it is possible to compare and then conclude that the relief accentuates the medium speed, in the tests conducted, theraise was of 12,7%.Therefore, to well represent reality in simulations, the road slope has to be considered.
Keywords
turbocharger, Heavy duty vehicles, Driving cycles, Computer simulation
