This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Impact of Drive Cycle Aggressiveness and Speed on HEVs Fuel Consumption Sensitivity
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2007 by SAE International in United States
Annotation ability available
Hybrid Electric Vehicle (HEV) owners have reported significantly lower fuel economy than the published estimates. Under on-road driving conditions, vehicle acceleration, speed, and stop time differ from those on the normalized test procedures. To explain the sensitivity, several vehicles, both conventional and hybrid electric, were tested at Argonne National Laboratory. The tests demonstrated that the fuel economy of Prius MY04 was more sensitive to drive-cycle variations. However, because of the difficulty in instrumenting every component, an in-depth analysis and quantification of the reasons behind the higher sensitivity was not possible. In this paper, we will use validated models of the tested vehicles and reproduce the trends observed during testing. Using PSAT, the FreedomCAR vehicle simulation tool, we will quantify the impact of the main component parameters, including component efficiency and regenerative braking.
CitationSharer, P., Leydier, R., and Rousseau, A., "Impact of Drive Cycle Aggressiveness and Speed on HEVs Fuel Consumption Sensitivity," SAE Technical Paper 2007-01-0281, 2007, https://doi.org/10.4271/2007-01-0281.
- INL website, http://avt.inel.gov/hev.shtml
- “Surprising facts about gas mileage, Hybrids return poorer mileage than expected”, Consumer Reports, June 2004
- EPA website, http://www.fueleconomy.gov/feg/why_differ_detailed.shtml
- Duoba M., Lohse-Busch H., Bohn T., “Investigating Vehicle Fuel Economy Robustness of Conventional and Hybrid Electric Vehicles”, EVS21, Monaco, April 2004.
- Rousseau A., Sharer P., Besnier F., “Feasibility of Reusable Vehicle Modeling: Application to Hybrid Vehicles”, SAE paper 2004-01-1618, SAE World Congress, Detroit, March 2004.
- EPA, report 420-D-06-005, “Fuel Economy Labeling of Motor Vehicles: Revisions to Improve Calculation of Fuel Economy Estimates”, January 2006.
- German J., “It's a high MPG vehicle issue, not a HEV issue”, SAE Government Industry meeting, 11 May 2005.
- Rousseau A., Sharer P., Pagerit S., Duoba M., “Integrating Data, Performing Quality Assurance, and Validating the Vehicle Model for the 2004 Prius Using PSAT”, SAE paper 2006-01-0667, SAE World Congress, Detroit, April 2006.
- Sovran G., Blaser D., “Quantifying the Potential Impacts of Regenerative Braking on a Vehicle's Tractive-Fuel Consumption for the U.S., European, and Japanese Driving Schedules”, SAE paper 2006-01-0664, SAE World Congress, Detroit, April 2006.