| 摘要 |
An object of a vehicular air-conditioning system is to efficiently perform air-conditioning of a vehicle interior and cooling of a heat generating element device mounted in a vehicle, and prevent damage of the device by reliably setting a temperature of a device cooling medium to be equal to or less than a predetermined temperature. The vehicular air-conditioning system includes: a vehicle interior air-conditioning apparatus which includes a device cooling circuit of a heat generating device mounted in a vehicle, and a refrigeration cycle circuit; and an intermediate heat exchanger for heat exchange between a device cooling medium of the device cooling circuit and an air-conditioning cooling medium of the refrigeration cycle circuit, wherein, when a temperature of the cooling medium of the device cooling circuit becomes equal to or higher than a predetermined temperature, a control cycle of the vehicular air-conditioning system is set to a short time, and the predetermined temperature is less than an upper limit temperature of the device cooling medium and is determined from a heat capacity of the device cooling circuit and an amount of heat generated by the heat generating device. |
