| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump type air conditioning system for a vehicle, the system capable of maintaining heat exchanging ability even when an amount of heat absorption in a heat absorber is increased. <P>SOLUTION: The air conditioning system includes a third heat exchanger 50 for heat absorption, disposed in a luggage compartment D in a rear part of a vehicle V, the heat exchanger disposed in the downstream of an expansion valve 40 and performing heat exchange between a coolant and air (A) for air conditioning to be discharged to the outside of the vehicle. The air conditioning system includes a control unit 90, which has a map in advance for determining freezing of condensed water, the map which relates to freezing of the condensed water in the third heat exchanger 50 during a heating operation and is specified by the outside air temperature, vehicle inside temperature, a blowing amount of a blower 80, a rotation speed of a coolant compressor 10 and a system operation time, and determines whether or not condensed water changes into a frozen state by using the map for discriminating freezing of condensed water. <P>COPYRIGHT: (C)2012,JPO&INPIT |
