| 摘要 |
PURPOSE:To reduce a number of part items required, with the proportion controlled between heating air and dehumidified cooling air to operate a control of temperature and air flow rate, by providing a blower in cooler evaporator and heater core respectively. CONSTITUTION:Opening degree of an air mixing door 13 is controlled by a blower 2 provided in a position near a heater core 4. Further with a set temperature signal and the then in-out air temperature signal inputted to a blower control amplifier 8 respectively as a resistence value, a blower 1 for a cooler evaporator 3 and the blower 2 for the heater core 4 are controlled to a flow rate to meet each resistance value, and a proportion, between heated air passing through the heater core 4 to go into an air mixing chamber 6 and dehumidified cooling air going into the air mixing chamber 6 from the cooler evaporator 3 via a bypass route 5, is determined to control the temperature and the air flow rate. |
