Links: Test Cycles & Standard Methods

Resources » Measuring of Emissions » Test Cycles & Standard Methods

USA

U.S. EPA Dynamometer Driver’s Aid: US EPA
Information, including speed-time data points, on a number of regulatory vehicle test cycles from the USA, EU and Japan.
U.S. EPA Nonregulatory Nonroad Duty Cycles: US EPA
Data on EPA nonregulatory, nonroad duty cycles for equipment such as agricultural tractors, backhoe loaders, crawlers tractors, excavators, etc.
SAE: Snap-Acceleration Smoke Test Procedure For Heavy-Duty Diesel Powered Vehicles: SAE J1667 (from California ARB, pdf)
Full text of the SAE Recommended Practice for the measurement of smoke opacity from heavy-duty diesel vehicles.
NIOSH: Elemental Carbon (Diesel Particulate): NIOSH NMAM Method 5040, Issue 3, 30 September 1999 (pdf)
NIOSH standard method for determination of diesel particulate exposures as elemental carbon.

New Transient Test Mode JE05 (ED12): Japanese Ministry of Environment
Computer programs are provided in C++ and Fortran to calculate engine torque-speed-time points for dynamometer testing of gasoline and diesel engines, based on the JE05 vehicle speed-time points as defined in the regulation.