This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of Long Haul Heavy Duty Vehicle Real World Fuel Economy Measurement Technique
Technical Paper
2013-01-0330
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
For many years, governments have driven the improvement of fuel
economy in transportation through tightening legislation. This
effort has focused on passenger cars, but is increasingly concerned
with heavy-duty vehicles (HDV). The combination of this regulatory
focus with the ever present desire for low cost of ownership in
commercial vehicles is giving increased pressure to deliver more
fuel efficiency from the lubricants.
In order to deliver improved fuel efficiency, suitable test
methodology is needed to give repeatable discriminatory results
that not only help in the advance of technology, but can also
highlight the magnitude of the benefit expected in real-world
applications. Typical on-road driving has significant variation in
fuel consumption due to driver inconsistency, changes in rolling
resistance and changeable ambient conditions. In order to avoid the
effect of such variables, current practices, such as the EPA
SmartWay™ methodologies typically utilize gravimetric measurement
of removable fuel tanks or more recently the possibility of using
Portable Emissions Measuring Systems (PEMS) over a set cycle.
These methods do still have significant variability inherent
within them, and, therefore an alternative methodology has been
developed using Brake Specific Fuel Consumption (BSFC) in an
operating vehicle in order to measure fuel consumption in a more
repeatable manner. This paper describes the development process
that allows this measurement to be undertaken on a vehicle being
driven over a set cycle and discusses benefits relative to current
methodologies.
Recommended Content
Authors
Topic
Citation
Moore, W., Sutton, M., and Donnelly, K., "Development of Long Haul Heavy Duty Vehicle Real World Fuel Economy Measurement Technique," SAE Technical Paper 2013-01-0330, 2013, https://doi.org/10.4271/2013-01-0330.Also In
References
- European Environment Agency Monitoring CO2 emissions from new passenger cars in the EU: summary of data for 2011 Oct 08 2012 http://www.eea.europa.eu/publications/monitoring-co2-emissions-from-new
- Federal Register 76 179 15 Sept 2011 57106 http://www.gpo.gov/fdsys/pkg/FR-2011-09-15/pdf/2011-20740.pdf
- Law K. , Jackson M. D. and Chan M. GHG reduction potential for heavy-duty vehicles in the EU 2012 19 01 http://www.theicct.org/sites/default/files/publications/ICCT%20GHG%20Reduction%20Potential_final.pdf
- Committee to Assess Fuel Economy Technologies for Medium- and Heavy-Duty Vehicles National Research Council, Transportation Research Board Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles 2010 978-0-309-14982-2 http://www.nap.edu/catalog.php?record_id=12845
- SmartWay Transport Overview 2004 http://www.epa.gov/smartway/documents/publications/overview-docs/420f12064.pdf
- SmartWay Fuel Efficiency Test Protocol for Medium and Heavy Duty Vehicles http://www.epa.gov/otaq/smartway/documents/publications/testing/420p07003.pdf
- Ensfield , C. , Bachman , L. , Erb , A. , and Bynum , C. Evaluating Real-World Fuel Economy on Heavy Duty Vehicles using a Portable Emissions Measurement System SAE Technical Paper 2006-01-3543 2006 10.4271/2006-01-3543 http://www.epa.gov/smartway/documents/publications/sae-reports/evaluating-fuel-economy.pdf
- Sensors Inc manufacturer of SEMTEC-DS portable emissions measuring equipment http://www.sensors-inc.com/ds.html
- SAE International Surface Vehicle Recommended Practice Fuel Consumption Test Procedure - Type II SAE Standard J1321 Feb. 2012
- Murtonen , T. and Sutton , M. New Crankcase Lubricants for Heavy-duty Diesel Engines: Effect on Fuel Consumption and Exhaust Emissions SAE Technical Paper 2005-01-3717 2005 10.4271/2005-01-3717
- Sutton , M. , Kocsis , J. , and Nakagawa , I. Improved Friction Modifiers to Aid in Future Fuel Economy Targets SAE Technical Paper 2007-01-4134 2007 10.4271/2007-01-4134