| 摘要 |
PURPOSE:To reduce electric power consumption as well as noise without disturbing the feeling of air-conditioning and providing crews with disagreeable feeling by a method wherein the difference of clouding conditions is decided by the value of cabin temperature to loosen or maximize the demisting control. CONSTITUTION:When a glass is clouded, a demist signal is inputted automatically or manually into a control circuit 8 from a demist switch 26 and demist operation is initiated. At first, a compressor 9 is driven to determine whether dehumidifying is possible or not when the atmospheric temperature is higher than a predetermined temperature. Next, the slow demist is initiated when the cabin temperature is higher than the preset temperature and the revolving speed of a fan 2 may be low while the mode thereof may not be a defrost mode. When the cabin temperature is lower than the predetermined temperature, the demist is maximized. The glass is easily clouded immediately after embarkation of crews, thererfore the maximum demist control is effected, but it is shifted to the slow demist after the maximum demist is continued for a given time. Here, the speed of the fan 2 is high and the mode is preferable to be defrosting. The feeling may be kept by the slow control of the demisting. |
