Control apparatus for air conditioner used for vehicles

Details Control apparatus for air conditioner used for vehicles Control apparatus for air conditioner used for vehicles

1991-06-05

1993-05-11

Wayner, William E.

Refrigeration

Automatic control

Of external fluid or means

236 916, 454 75, F25D 1700

Patent

active

052090795

ABSTRACT:
A control apparatus for an air conditioner used for a vehicle can properly control the temperature of air in the vehicle according to the quantity of solar radiation so as to maintain the temperature as not too cool for a person in the vehicle while suppressing the temperature as not too hot for the person. The control apparatus comprises a solar radiation sensor for detecting the quantity of solar radiation coming into the vehicle room; an operation unit for entering a set temperature; a target temperature determining unit for receiving an processing a solar radiation quantity signal from the solar radiation sensor and a set temperature signal from the operation unit, and successively finding target temperatures from a first temperature region which is relatively low and in which a temperature decreases slightly relative to an increase in the quantity of solar radiation and a second temperature region which is relatively high and in which a temperature decreases according to an increase in the quantity of solar radiation, and selecting and determining one of the target temperatures according to a predetermined program; and an adjusting unit for adjusting the temperature of air to be blown into the vehicle room according to the target temperature.

REFERENCES:
patent: 4890460 (1990-01-01), Osawa et al.
patent: 4978061 (1990-12-01), Ogihara et al.
patent: 5072106 (1991-12-01), Osawa

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