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Downsized Boosted Engine Benchmarking and Results
Technical Paper
2015-01-1266
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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Authors
- 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
Topic
Citation
Stuhldreher, 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.Also In
References
- U.S. Environmental Protection Agency and Department of Transportation 2017 and Later Model Year Light-duty Vehicle Greenhouse Gas Emissions and Corporate Average Fuel Economy Standards: Final Rule Federal Register 77 199 October 15 2012
- Lee , B. , Lee , S. , Cherry , J. , Neam , A. et al. Development of Advanced Light-Duty Powertrain and Hybrid Analysis Tool SAE Technical Paper 2013-01-0808 2013 10.4271/2013-01-0808
- SAE International Surface Vehicle Standard Procedure for Mapping Engine Performance-Spark Ignition and Compression Ignition Engines SAE Standard J1312 June 1995
- Plint , M. ; Martyr , A. third edition Engine Testing Theory and Practice
- U.S. Environmental Protection Agency Code of Federal Regulations