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Engine Manangement for Flex Fuel plus Compressed Natural Gas Vehicles
Technical Paper
2005-01-3777
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Ethanol has been used in Brazil as a passenger vehicle fuel since 1979. Until the year 2000, vehicles were made to run exclusively with either gasoline or ethanol. The MultiFuel® engine control module (ECM) was developed allowing vehicles to use fuels with any ethanol percentage, relying only on the existing oxygen sensor as opposed to an add-on ethanol sensor for the percent ethanol evaluation. The use of tank fuel level information allowed for far more robust ethanol percent detection and improved driveability. Four years later, compressed natural gas (CNG) capability was integrated into the MultiFuel® technology. Prior to that, vehicles using CNG normally required a second ECM; however, the performance wasn't always optimal. The MultiFuel® integrated with CNG capability is known as the Tri-Fuel system. It uses only one ECM, seamlessly controlling both liquid (ethanol blends and gasoline) and CNG fuels with little power loss, and excellent driveability and fuel consumption. This paper will present both the MultiFuel® and Tri-Fuel technologies.
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Authors
Citation
Volpato, O., Theunissen, F., and Mazara, R., "Engine Manangement for Flex Fuel plus Compressed Natural Gas Vehicles," SAE Technical Paper 2005-01-3777, 2005, https://doi.org/10.4271/2005-01-3777.Also In
References
- 2004 Brazilian Automotive Industry Yearbook
- Stone Richard “Introduction to Internal Combustion Engines” third SAE International 1999
- Percent Ethanol Estimation on Sensorless Multi Fuel Systems Advantages and Limitations Theunissen Frans M. M. Delphi Automotive Systems Brazil
- Automotive Handbook 4th Bosch 1996
- FuelTable from US Department of Energy www.eere.energy.gov
- Combustíveis para Motores Endotérmicos Enfoque no Gás Natural Veicular Dalavia Diocles Petrobrás
- Renewable energy in developing countries Renewable Energy World July-August 2003
- Brazil Taking the Lead in BioFuels Petrol World August 2005
- Gás Natural na Matriz de Combustíveis Veiculares de Freitas Rachid Luciana Bastos Petrobras 2005
- Well-to-Tank Energy Use and Greenhouse Gas Emissions of Transportation Fuels North American Analysis 2001 2 Argonne, IL
- “Ethanol as Fuel: Energy, Carbon Dioxide Balances, and Ecological Footprint” BioScience 55 7 593 602