UDDS stands for Urban Dynamometer Driving Schedule, and refers to a
United States Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it ...
mandated
dynamometer
A dynamometer or "dyno" for short, is a device for simultaneously measuring the torque and rotational speed ( RPM) of an engine, motor or other rotating prime mover so that its instantaneous power may be calculated, and usually displayed by ...
test on fuel economy that represents city driving conditions which is used for light duty vehicle testing.
It is also known as ''U.S. FTP-72 (Federal Test Procedure) cycle'', ''LA-4 cycle'', in Sweden as ''A10'' or CVS (''Constant Volume Sampler'') cycle and in Australia as the ''ADR 27 (Australian Design Rules) cycle''.
Though it was originally created as a reference point for fossil fueled vehicles, it is also used to give estimates on how many miles an electric vehicle will travel on a single charge.
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See also
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FTP-75
The EPA Federal Test Procedure, commonly known as FTP-75 for the city driving cycle, are a series of tests defined by the US Environmental Protection Agency (EPA) to measure tailpipe emissions and fuel economy of passenger cars (excluding lig ...
driving cycle
National Vehicle Fuel and Emissions Laboratory (NVFEL)
References
United States Environmental Protection Agency