模拟汽车在道路上行驶时的气候条件（风速、温度、湿度、日照）和汽车运行状态（车速、行驶阻力等），测定汽车在一定条件下运行的性能。

Simulate  weather conditions when vehicle on the road(wind speed, temperature, humidity, sunshine) and running status(speed, driving resistance, etc.), test vehicle running performance under certain conditions.

●试验温度：-20℃～ +60℃

Test temperature: -20 ℃ ~ +60 ℃

●保温效果：热平衡后，室内每小时温升（降）≤2℃±0.5℃；

Insulation effect: After thermal balance, temperature change velocity ≤ 2 ℃ ± 0.5 ℃