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Vehicle Modeling Main Page

China Based Models/Data

International Models/Data


Main page: AUTONOMIE

Related link: AUTONOMIE software

Autonomie is an advanced vehicle simulation software developed and distributed by Argonne National Laboratory. The software combines a user friendly GUI to run simulations using the calculation software Matlab and Simulink. The key advantage of Autonomie is that it allows users to vary a wide range of vehicle parameters and even import their own data files for use in the software, such as, engine maps and energy storage control strategies. The software was even used recently to help evaluate the effectiveness of advanced transmissions and electric vehicles on improvements in fuel efficiency.1)

U.S. Based Models/Data

EPA Vehicle Fuel Economy Testing

Main page: Vehicle Fuel Economy Testing

Related links: Testing procedures| Detailed drive schedule data

The U.S. Environmental Protection Agency (EPA) requires tests of all new vehicles sold in the U.S. market using a series of specified driving cycles. Vehicles are either tested by the EPA at the National Vehicle and Fuel Emissions Laboratory (NVFEL) or by the vehicle manufacturer.2)

The vehicles are run on two main tests: the City or “Federal Test Procedure”, and the Highway or “Highway Fuel Economy Driving Schedule”. There are three other tests used to better simulate real world conditions. The main two tests are then adjusted using the results of the three additional tests.


Main page: GREET

Related link: GREET 2 model

The GREET model for estimating energy and emissions of vehicle production is called “GREET 2”. Since this model overlaps with the Environmental Modeling section a more indepth discussion of this model is in the GREET main page.


Main page: OMEGA

Related link: OMEGA model

The Optimization Model for reducing Emissions of Greenhouse gases from Automobiles (OMEGA) was developed by the U.S. Environmental Protection Agency to estimate the technology cost for automobile manufacturers to meet various levels of fleetwide GHG emissions. The model was utilized to support the 2017-2025 Light-Duty Vehicle GHG Emissions Standards.

1) More information on how Autonomie was used for the 2017-2025 CAFE rules can be found here:
2) More information on the data and testing procedures can be found here: