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Downsized Boosted Engine Benchmarking and Results
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2015 by SAE International in United States
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Light-duty vehicle greenhouse gas (GHG) and fuel economy (FE) standards for MYs 2012-2025 are requiring vehicle powertrains to become much more efficient. One key technology strategy that vehicle manufacturers are using to help comply with GHG and FE standards is to replace naturally aspirated engines with smaller displacement “downsized” boosted engines. In order to understand and measure the effects of this technology, the Environmental Protection Agency (EPA) benchmarked a 2013 Ford Escape with an EcoBoost® 1.6L engine.
This paper describes a “tethered” engine dyno benchmarking method used to develop a fuel efficiency map for the 1.6L EcoBoost® engine. The engine was mounted in a dyno test cell and tethered with a lengthened engine wire harness to a complete 2013 Ford Escape vehicle outside the test cell. This method allowed engine mapping with the stock ECU and calibrations. Data collected included torque, fuel flow, emissions, temperatures, pressures, in-cylinder pressure, and OBD/epid can data.
- Mark Stuhldreher - US Environmental Protection Agency
- Charles Schenk - US Environmental Protection Agency
- Jessica Brakora - US Environmental Protection Agency
- David Hawkins - US Environmental Protection Agency
- Andrew Moskalik - US Environmental Protection Agency
- Paul DeKraker - US Environmental Protection Agency
CitationStuhldreher, M., Schenk, C., Brakora, J., Hawkins, D. et al., "Downsized Boosted Engine Benchmarking and Results," SAE Technical Paper 2015-01-1266, 2015, https://doi.org/10.4271/2015-01-1266.
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