Automobile air conditioner compressor discharge capacity control

Details Automobile air conditioner compressor discharge capacity control Automobile air conditioner compressor discharge capacity control

1992-01-23

1993-03-09

Hepperle, Stephen M.

Refrigeration

Automatic control

Refrigeration producer

621766, 62229, F25B 4100

Patent

active

051917688

ABSTRACT:
Compressor discharge capacity is controlled by using the smaller value as a desired cooling temperature for control, comprising a first desired evaporator cooling temperature computed from the pattern of the desired cooling temperature characterized by its being high when a cooling load is low, with a second desired evaporator cooling temperature computed from the pattern of the desired cooling temperature characterized by its being high when the outdoor temperature is moderate, and by its being low when the outdoor temeprature is low or high. Therefore, if the desired temperature is set high in a passenger compartment when the outdoor temperature is high, or if a cooling load is low when the outdoor temperature is low, the desired cooling temperature can be kept low for controlling while maintaining high dehumidifying capacity.

REFERENCES:
patent: 4412424 (1983-11-01), Iida et al.
patent: 4482007 (1984-11-01), Yoshimi et al.
patent: 4877081 (1989-10-01), Ohtsu
patent: 4907416 (1990-03-01), Fujii
patent: 4920755 (1990-05-01), Tadahiro

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