| 摘要 |
PURPOSE:To produce a comfortable air conditioning effect through simple control, by a method wherein, under a condition that the airflow of a blower is set to maximum and an mix door is set to a full cool side, a compressor is operated at a maximum operating efficiency and maximum capacity. CONSTITUTION:When a blower switch 2 is set to the H side, an airflow, produced by a motor 4, is set to maximum, and an air mix door is set to the full cool side, contacts 6a and 13 are opened to release a resistor R4 from a short circuit condition, a reference voltage, produced answering to an evaporator temperature sensor 11, is varied to a high value which is determined based on a ratio of the series resistance value of resistors R3 and R4 to the resistance value of a resistor R5, operation is conducted at the maximum working efficiency of a compressr 10 through the working of a comparator 12, a transistor 9, and a relay 8 to sharply reduce temperature in a car room. This enables a comfortable air conditioning effect to be easily produced without complicated control. |
