Automatic temperature and humidity regulation – Mixing fluid of dissimilar temperature – Plenum type
Patent
1986-06-20
1987-10-06
Tanner, Harry
Automatic temperature and humidity regulation
Mixing fluid of dissimilar temperature
Plenum type
236 49, 165 16, G05D 2300
Patent
active
046977341
ABSTRACT:
An air-mix door control apparatus for an air conditioner of an automobile wherein an opening range of the air-mix door divides into three ranges on the basis of the relationship between the change ratio of opening of the air-mix door and the change ratio of the discharge air temperature. In the range where the change ratio of the discharge air temperature is great, the voltage applied to the air-mix control motor is changed over to a low voltage, in the range where the change ratio of the discharge air temperature is small, the voltage applied to the air-mix control motor is changed over to a high voltage. In the range where the change ratio of the discharge air temperature with respect to the change of opening of the air-mix door is great, changing of the air-mix door can be prevented. In the range where the change ratio of discharge air temperature with respect to the change of opening of the air-mix door is small, the responsiveness of the air-mix door can be improved.
REFERENCES:
patent: 4487254 (1984-12-01), Hayashibara
patent: 4585163 (1986-04-01), Cooley et al.
patent: 4607789 (1986-08-01), Bowman
Hitachi , Ltd.
Tanner Harry
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