Electric control method and apparatus for air conditioners

Details Electric control method and apparatus for air conditioners Electric control method and apparatus for air conditioners

1980-09-26

1982-11-16

Makay, Albert J.

Refrigeration

Automatic control

Refrigeration producer

623234, 165 43, F25B 100, B60H 300

Patent

active

043589367

ABSTRACT:
In control of the cooling ability of an automobile air conditioner, an electric control method comprises the steps of detecting a deviation between the actual in-car temperature and a desired value upon each lapse of a predetermined period of time, comparing the detected deviation with a predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than the predetermined value, comparing the detected deviation with the preceding detected deviation when the detected deviation is smaller than or equal to the predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than or equal to the preceding detected deviation, decreasing the cooling ability of the air conditioner when the detected deviation is smaller than the preceding detected deviation, and increasing the cooling ability of the air conditioner when the detected deviation is larger than each of the predetermined value and the preceding detected deviation, thereby to reduce unnecessary engine power torque losses caused by operation of the air conditioner.

REFERENCES:
patent: 2746261 (1956-05-01), Gibson
patent: 3576420 (1971-04-01), Iceland et al.

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