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Examining the Influence of Road Grade on Vehicle Specific Power (VSP) and Carbon Dioxide (CO 2 ) Emission over a Real-World Driving Cycle
Technical Paper
2013-01-1518
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Carbon Dioxide (CO₂) emission from a EURO 3 diesel van over a real-world driving cycle were investigated utilizing part of the Leeds University - Headingly Ring Road (LU-HR) driving cycle, which comprises both an urban (congested) and extra-urban (high speed) driving section.
The vehicle used in this research was a 1.8-liter Ford Connect TDCi diesel van. Emissions were monitored by a Portable Emissions Measurement System (PEMS) incorporating an on-board FTIR (Fourier Transform Infrared) exhaust emission measurement system, a Horiba On Board emissions measuring System (OBS 1300) which measured the exhaust flow rate and air/fuel ratio, and a RaceLogic VBOX II differential GPS system provided geographical position, speed and acceleration data.
Route topography is known to have substantial influence on vehicle emission. The research reported in this paper was designed to investigate the effect of road grade on the test vehicle's CO₂ emission across a real-world test drive cycle, employing a route elevation profile derived from Digital Elevation Model (DEM) data.
Vehicle Specific Power (VSP), representing the instantaneous engine power at each second of the vehicle's transit thorough the test cycle, has been demonstrated in a number of studies as an excellent parameter for modeling CO₂ emission. The VSP calculation in this paper was enhanced through the incorporation of road grade, which was generated by mapping DEM elevation data to each second of measured data recorded in the driving cycle test runs.
This study also examines the impact that road grade has on VSP and CO₂ emission over the test cycle using a binning methodology to construct a modal emission estimation model to investigate the vehicle's CO₂ emission at both a mesoscale route and microscale section level.
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Citation
Wyatt, D., Li, H., and Tate, J., "Examining the Influence of Road Grade on Vehicle Specific Power (VSP) and Carbon Dioxide (CO2) Emission over a Real-World Driving Cycle," SAE Technical Paper 2013-01-1518, 2013, https://doi.org/10.4271/2013-01-1518.Also In
References
- Li , H. , Andrews , G. , Savvidis , D. , Daham , B. et al. Impact of Driving Cycles on Greenhouse Gas Emissions and Fuel Economy for SI Car Real World Driving SAE Int. J. Fuels Lubr. 1 1 1320 1333 2009 10.4271/2008-01-1749
- Zhang , K.S. and Frey H.C. Road grade estimation for on-road vehicle emissions modeling using light detection and ranging data Journal of the Air & Waste Management Association 2006 56 6 777 788
- Frey , H.C. , Zhang K.S. , and Rouphail N.M. Fuel use and emissions comparisons for alternative routes, time of day, road grade, and vehicles based on in-use measurements Environmental Science & Technology 2008 42 7 2483 2489
- Xu , Y.F. , Yu L. , and Song G.H. Improved Vehicle-Specific Power Bins for Light-Duty Vehicles in Estimation of Carbon Dioxide Emissions in Beijing Transportation Research Record 2010 2191 158 165
- Song , G.H. and Yu L. Estimation of Fuel Efficiency of Road Traffic by Characterization of Vehicle-Specific Power and Speed Based on Floating Car Data Transportation Research Record 2009 2139 11 20
- Jimenez-Palacios , J. Understanding and quantifying motor vehicle emissions with vehicle specific power and TILDAS remote sensing 1999 Doctoral Dissertation Department of Mechanical Engineering, Massachusetts Institute of Technology Cambridge, MA
- Frey , H.C. , Zhang K. , and Rouphail N.M. Vehicle-Specific Emissions Modeling Based upon on-Road Measurements Environmental Science & Technology 2010 44 9 3594 3600
- Jackson , E. and Aultman-Hall L. Analysis of Real-World Lead Vehicle Operation for Modal Emissions and Traffic Simulation Models Transportation Research Record 2010 2158 44 53
- Boriboonsomsin , K. and Barth M. Impacts of Road Grade on Fuel Consumption and Carbon Dioxide Emissions Evidenced by Use of Advanced Navigation Systems Transportation Research Record 2009 2139 21 30
- Heisler , H. Advanced vehicle technology 2nd 2002 Oxford Butterworth-Heinemann
- Coelho , M.C. et al. Assessing methods for comparing emissions from gasoline and diesel light-duty vehicles based on microscale measurements Transportation Research Part D-Transport and Environment 2009 14 2 91 99
- Li , H. , Andrews , G. , Savvidis , D. , Ropkins , K. et al. Investigation of Regulated and Non-Regulated Cold Start Emissions using a EURO3 SI Car as a Probe Vehicle under Real World Urban Driving Conditions SAE Technical Paper 2008-01-2428 2008 10.4271/2008-01-2428
- Daham , B. , Li , H. , Andrews , G. , Tate , J. et al. Driver Variability Influences on Real World Emissions at a Road Junction using a PEMS SAE Technical Paper 2010-01-1072 2010 10.4271/2010-01-1072
- Li , H. , Andrews , G. , Savvidis , D. , Daham , B. et al. Comparisons of the Exhaust Emissions for Different Generations of SI Cars under Real World Urban Driving Conditions SAE Technical Paper 2008-01-0754 2008 10.4271/2008-01-0754
- Mapmyrun.com Headingley Ring Road Route Plot 2012 2012 31 07 2012 http://www.mapmyrun.com/routes/view/119427771
- GPSvisualizer.com GPS Visualiser 2012 18 07 2012 http://www.gpsvisualizer.com/convert_input
- Kwon , J. , Rousseau , A. , and Sharer , P. Analyzing the Uncertainty in the Fuel Economy Prediction for the EPA MOVES Binning Methodology SAE Technical Paper 2007-01-0280 2007 10.4271/2007-01-0280
- Zhai , H.B. , Frey H.C. , and Rouphail N.M. A Vehicle-Specific Power Approach to Speed- and Facility-Specific Emissions Estimates for Diesel Transit Buses Environmental Science & Technology 2008 42 21 7985 7991
- Wang , H.K. and Fu L.X. Developing a High-Resolution Vehicular Emission Inventory by Integrating an Emission Model and a Traffic Model: Part 1-Modeling Fuel Consumption and Emissions Based on Speed and Vehicle-Specific Power Journal of the Air & Waste Management Association 2010 60 12 1463 1470