Valeooscope - Air Conditioning System Thermal comfort loop

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Air conditioning is used both in the summer and the winter; all year round. It enhances comfort at the wheel and sharpens the driver’s reflexes. This is a result of the various functions that air condi- tioning fulfills. Air conditioning makes for greater well-being, because: g The temperature is just right g The air is filtered g The humidity in the air is under control Air conditioning makes for improved safety because the driver’s vigilance is enhanced. It helps to overcome: g Irritation and lack of attention g Poor visibility, helping to improve the driver’s reaction time. Air Conditioning well-being in the cabin all year long In summer: The air conditioning cools down the hot air entering the vehicle in order to obtain the required tempe- rature inside the cabin (usually around 22°C) and to maintain this temperature, despite changes in the ambient conditions (day, night, rain, sun, etc.), using the regulation functions. In autumn, winter and spring: The air conditioning dries the air. This function can be used to demist the windscreen and other win- dows in the cabin, thereby improving safety. Ideal demisting performance is achieved by combining the conditioned air with the heating. Vehicles are used in hot and cold temperate climates. These notions characterise a geographical zone and a season. The ambient climatic conditions are measured by two thermodynamic quantities: g Temperature g Humidity

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