Speciated hydrocarbons in exhaust emissions of Proconve L7 flex fuel vehicles using E22 gasohol and hydrous ethanol

Theme: Emissions and Pollutants Caused by Vehicles

This paper addresses the speciation of hydrocarbons from the exhaust emissions of Proconve L7 flex fuel vehicles using standard gasohol E22 and hydrous ethanol, which is necessary to obtain the Maximum Incremental Reactivity (MIR) coefficients applied in the NMOG (non-methane organic gases) emissions calculation. NMOG combined with NOx (nitrogen oxides) in the presence of sunlight are the main precursors of ozone in the troposphere and are regulated in Brazil from the Proconve L7 phase since 2022. Hydrocarbons speciation, in the range of C2 to C12, were performed in a gas chromatograph coupled to a mass spectrometer detector using inert metallic spheres for sampling and a standard gas recommended by CARB for calibration. Proconve L7 flex-fuel vehicles with port-fuel (PFI) and direct fuel injections (GDI) were evaluated with the canisters saturated with butane, following the NBR-6601 standard urban driving cycle. Results were consistent with previous studies of Petrobras with Proconve L4 to L6 vehicles, presenting typical hydrocarbons species of gasohol combustion in the tests with E22 and more than 99% of C2 compounds (ethene, ethane and ethine) using hydrous ethanol with no evidence of samples contamination.

Authors: Rogério Nascimento de Carvalho, Douglas Guerreiro Ribeiro, João Maximino de Souza, Tadeu Cavalcante Cordeiro de Melo e Pedro Caffaro Vicentini – Petrobras

Theme: Conventional and Alternative Fuels and Lubricants

Analysis of Hydrogen as Alternative Fuel for Passenger Cars in Brazil

Authors: Luísa Clemente Magalhães Gomes, Roger Tadeu Gondim Guilherme e Fernando Fusco Rovai – Volkswagen do Brasil

Fuel Saving Through Low Viscosity Lubricants: Experimental Validation Challenges

Authors: Fernando Fusco Rovai, Samantha Uehara, Roger Tadeu Gondim Guilherme, Eduardo Sartori, Jesuel Crepaldi e Eduardo Tomanik – Volkswagen do Brasil, Idemitsu Lube South America, Escola Politécnica de Universidade de São Paulo Pesquisa

Theme: Vehicle Dynamics And Control

Enhancing Regenerative Braking Efficiency In Electric Vehicles: A Simulation Study Of Cooperative Braking Systems

Authors: Bruno Romão e Emerson Batagini – Robert Bosch

Theme: Vehicle Electronics and Software

The Role of Ethernet in Modern Vehicles: Advancing Connectivity and High-Bandwidth Networking

Authors: Leonardo Antunes Ferreira , Danilo Gonçalves Costa, Gustavo Pereira Palmeira, Ronaldo Tadeu Munhoz – Mercedes-Benz do Brasil

Theme: Emissions and Pollutants Caused by Vehicles

A Comprehensive Analysis of Coastdown test: A Study on Deceleration Resistance Variables

Authors: Maria Augusta de Menezes Lourenço , Osmar Medeiros Santos de Oliveira , Rafael Luliano Sambiase , Roger Tadeu Gondim Guilherme, Eduardo Augusto Pires Gonçalves, Rafael Rezende dos Santos e Vinicius Carneiro da Costa – Volkswagen do Brasil

Influence of Gasoline Particulate Filter Technology on Compliance with Future Emission Standards

Authors: Pawel Straszak , Philipp Quante , Oscar Javier Duque e Felipe Machado Balbom – FEV Europe GmbH / América Latina

Theme: Advanced Vehicle Driveline and Energy Management

A novel approach for predicting battery state of charge and health using an Elman Neural Network combined with Particle Swarm Optimization: Validation with experimental data from Plug-in Hybrid Electric Vehicles

Authors: Matheus Henrique Rodrigues Mira, Fabrício Leonardo Silva , Miguel Campino, Gonçalo O. Duarte, Tiago Farias e Ludmila Corrêa de Alkmin e Silva – Universidade Estadual de Campinas, Universidade Estadual Paulista , Instituto Superior Técnico, Instituto Superior de Engenharia de Lisboa

Theme: Manufacturing, Materials and Lightweight Solutions

High-Durability Hydrogen Combustion Engines: A Comparative Study of Cast Irons and Steels

Authors: Rafael Brisolla Obara , Anna Louise Voigt , Andre Ferrarese, Carlos de Souza Cabezas, Luiza de Brito Fantin, Marcelo Ferreira Moreira, Anna Ramus Moreira, Luís Fernando Fiuza Chaves – Tupy S.A, Instituto de Pesquisas Tecnológicas

Theme: Automated and Connected Mobility

Technological Roadmap of Artificial Intelligence and Connectivity in Contemporary Automotive Systems

Authors: João Arthur Furlan Scherer, Marcos Andrade , Murilo Artur Ortolan, Camilla Verbiski de Andrade, Vincent Bigliardi – ATS, Horse, AVL

Theme: Digital Transformation

Product Validation Using Compute And Image Processing

Authors: João Victor Ramirez Konrath, Fernando de Souza Gonçalves Cassiano e Márcio José Moraes – Robert Bosch