| 摘要 |
PURPOSE:To aim at enhancing energy-saving measures and as well comfortability of air-conditioning, by comparatively computing the dew point temperature in a vehicle compartment, the temperature of the compartment and as well the temperature of windowpanes to anticipate the blurring of the windowpanes and as well to automate the operating mode of windowpane blow-out. CONSTITUTION:If the dew point temperature in a vehicle compartment which is detected by a dew point temperature detector 20 is t2, air in the vehicle compartment blurs windowpanes when it makes into contact with the windowpanes whose temperature is below t2. Microcomputer 17 compares the dew point temperature with the temperature of the windopanes detected by the detector 20. Even through the air-conditioning system is rested, the computer 17 drives a compartment setting display 18 through a driver- multiplexor block 28 in accordance with the difference between both temperature to issue the warning of blurring of windowpanes and as well alarm sound. Further, if the operation mode of the air-conditioning system is other than the windowpane blow-out (DEF), a plurality of actuators 25, 26, etc. are driven by means of a block 24, and there fore, the operation mode is changed over into the DEF mode. Further, if air in the compartment is dried and therefore, there is no possibility of blurring of windowpanes, an evaporator 4 is ceased to carry out energy-saving operation. |
