Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
REAL DRIVING CYCLES IN BELO HORIZONTE AND ITS IMPACTS ON EMISSIONS AND FUEL CONSUMPTION
Submission Author:
Larissa Coelho , Procurando endereço...
Co-Authors:
Larissa Coelho, Marina Fonda, Jose Baeta, Oscar Ricardo Sandoval Rodriguez
Presenter: Larissa Coelho
doi://10.26678/ABCM.COBEM2019.COB2019-0497
Abstract
In order to reduce the level of pollutants from vehicles, CONAMA launched in 1986 the PROCONVE Program. Since them, this program has been implemented in stages. In November 2018, a new stage was launched: the P8 phase. This phase proposes to change the drive cycle from ETC to WHTC until a new specific cycle for Brazil is formulated. Thus, the proposal of this work is to present a new urban driving cycle for heavy duty vehicles for Belo Horizonte, Brazil. This cycle was obtained by experimental measurements velocity in Belo Horizonte’s buses. The ETC and WHTC was compared to this real drive cycle, considering the typical values of the parameters that characterize the three cycles. The second stage of the analysis compared the vehicle’s emissions and fuel consumption in each of those cycles. It was observed that the urban part of the WHTC was more closely of the real driving cycle. However, the ETC cycle has an engine operating regime more similar to the real cycle. The emissions of NOx, CO and HC presented lower values in case of the European cycles. The opposite was observed on fuel consumption rate. It is concluded that none of the theoretical cycles is faithful to the reality of Belo Horizonte, and it is suggested that Brazilian real cycles should be investigated in order to build a most representative cycle.
Keywords
Real Driving cycles, Proconve P7 and P8, Emissions Brazil’s Legislation, WHTC Cycle, ETC Cycle.
