The JE05 test is defined through vehicle speed vs. time points, as shown in the following chart. The duration of the test is approximately 1800 s, the average speed is 26.94 km/h, and the maximum speed is 88 km/h.
For engine dynamometer testing, engine torque-speed-time data must be generated based on the vehicle speed points. Computer programs to generate the torque-speed data for both gasoline and diesel engines have been provided by the Japanese Ministry of Environment.
CONAMA Resolution #433
Conselho Nacional do Meio Ambiente (CONAMA)