The validation 2 results database contains temperature monitoring for 274 different overnight soaks without and 15 soaks with accelerated cooling. Figure 5 shows an example for coolant and air temperature monitoring of 7 different tests with the same vehicle.
An extensive evaluation of the results led to the following specifications in the GTR:
The soak area shall have a temperature set point of 296 K and the tolerance of the actual value shall be within ± 3 K on a 5 minute running average and shall not show a systematic deviation from the set point. The temperature shall be measured continuously at a minimum of 1 Hz.
