| 摘要 |
PURPOSE:To remarkably reduce a load for the crew and safely drive a vehicle, by obtaining maximum operation of room cooling or room heating with a control means only through control of rotary speed of a blower to a high speed and providing said control means to an air conditioning device for the vehicle. CONSTITUTION:When a blower high speed switch 8 is turned ON in summer, a control unit 1 arithmetically compares outside temperature ta with the first set level A, in case of ta>=A, driving parts 9, 10, 11, 18, 20 are controlled to operate a blower 19 to maximum speed and adjust an air mixing door 13 to a maximum room cooling mode, further a compressor 14 is operated to a maximum limit and driven till an antifreeze switch, detecting temperature of an evaporator cooled by the compressor, operates, and cooling power of the evaporator is increased to a maximum limit. Further an inside-outside air selector door 17 is controlled to obtain a minimum rate of outside air introduction, and cooled air is controlled to blow in the direction of a face. And in winter when the outside temperature is not higher than the second set level, if the blower high speed switch 8 is turned ON, a maximum room heating mode can be set reversely to the above. |
