UDDS
(Redirected from LA-4 cycle)
UDDS stands for Urban Dynamometer Driving Schedule,[1] and refers to a United States Environmental Protection Agency mandated dynamometer test on fuel economy that represents city driving conditions which is used for light duty vehicle testing.[2]
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.[3]
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.[4]
See also
[edit]- FTP-75 driving cycle
- National Vehicle Fuel and Emissions Laboratory (NVFEL)