| 摘要 |
PURPOSE:To aim at saving labour for controlling a vehicle air-conditioning device in which a heat-exchanger is subjected to the control of operation and stop, by carrying out the proportional integration of deviations between the temperatures of the passenger's compartment and a desired value to set a desired capacity of the heat- exchanger so that the operation and stop of the heat-exchanger are controlled. CONSTITUTION:An electrical control device 1 including a microcomputer receives a detected passenger's compartment temperature 7, a desired temperature 9 and a blow-out air temperature 8, and carries out the proportional integration of deviations between the passenger's compartment temperature 7 and the desired temperature 9, and compares the result of the proportional integration with a preset reference value so that the calorific heat Q of air to be fed to the passenger' compartment is determined as the producing air volume A of a blower 4 and the temperature difference DELTAt between a cooler 2 and a heater 3. Further, on the basis of this determination, the control is carried out by selecting the operation and stop of the air cooler 2 and the air heater 3. With this arrangement, the availability factor of the cooler is lowered to reduce variations in the temperature of blow-out air, thereby it is possible to aim at saving labour. |
