| 摘要 |
PURPOSE:To prevent the quick temperature change in a transient period by setting the region of the preset temperature range with the minimum value as a lower limit near the minimum value (or maximum value) of the room temperature set value and changing the opening or an air mixing door in proportion to the temperature set value at the portion on the lower limit side. CONSTITUTION:For the opening control of an air mixing door 7, the minimum value of the temperature set value TD of a room temperature setter 27 is set to TD1 (about 18 deg.C) and the maximum value is set to TD4 (about 32 deg.C), and the opening theta of the air mixing door 7 is calculated based outputs of sensors so that the car room temperature is made near the room temperature set value TD. The temperature TD2 higher than TD1 by the preset value and the temperature TD3 lower than TD4 by the preset value are set in a control map, and an opening straight line linearly rising from the opening 0% in proportion to the increase of the set value TD in the region I between TD1 and TD2 is set. When the set value TD is changed from TD1 to TD2 in the region I, the opening thetais gradually increased and controlled according to the opening straight line. |
