| 摘要 |
PURPOSE:To allow the conditioned air to blow off from the lower air outlet providing the feet of a crew with the cooled air by setting the mode of bi-level blow off when the result is found to be affirmative by a detector for a detected cooling load. CONSTITUTION:When the required blow off temperature TAO is below 50 deg.C, the stored data Ts concerning the quantity of solar radiation examines to see if the solar radiation exceeds the specified value. If it is, the cooled air blows off from a vent air outlet with a cooling damper 25 opened. In repeating the cycle of this program, an air mixing damper is controlled in sich a manner that the cabin air temperature Tr canbe maintained at the specified temperature Tset in response to change in surrounding condition, and to change in the capacity of a cooler and a heater. Simultaneously, the mode of blow off is set up step by in response to the blow off temperature TAO which represents the cooling load. When the cooling load is extraordinally large, the mode of bi-level blow off is set allowing the cooled air to blow off around the feet of a crew from an air outlet 1c, furthermore to blow off around the upper half of the crew from an upper air outlet 1d resulting in an overall cooling of the body of the crew. |
