Analyzing the Uncertainty in the Fuel Economy Prediction for the EPA MOVES Binning Methodology

Document Number: 2007-01-0280

Date Published: April 2007

Author(s):
Jason Chonghoon Kwon - Argonne National Laboratory

Abstract:
Developed by the U.S. Environmental Protection Agency (EPA), the Multi-scale mOtor Vehicle Emission Simulator (MOVES) is used to estimate inventories and projections through 2050 at the county or national level for energy consumption, nitrous oxide (N2O), and methane (CH4) from highway vehicles. To simulate a large number of vehicles and fleets on numerous driving cycles, EPA developed a binning technique characterizing the energy rate for varying Vehicle Specific Power (VSP) under predefined vehicle speed ranges. The methodology is based upon the assumption that the vehicle behaves the same way for a predefined vehicle speed and power demand. While this has been validated for conventional vehicles, it has not been for advanced vehicle powertrains, including hybrid electric vehicles (HEVs) where the engine can be ON or OFF depending upon the battery State-of-Charge (SOC). The Powertrain System Analysis Toolkit (PSAT), a vehicle simulation software developed by Argonne National Laboratory, will be used to generate the MOVES bins as well as evaluate the uncertainties. This paper will quantify and explain the fuel economy uncertainties introduced by the żaverageż vehicle in the representative source bins for several powertrain configurations, control strategies, and drive cycles defined in MOVES.

File Size: 604K
Product Status: In Stock

Included in: SP-2101

See other papers presented at SAE World Congress & Exhibition, April 2007, Detroit, MI, USA, Session: Advanced Hybrid Vehicle Powertrains (Part 3 of 6) Hybrid Testing and Simulation Studies

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >