Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1990-09-25
1991-12-10
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
98 201, 454 75, 454900, G01J 0000, H01J 4014
Patent
active
050721062
ABSTRACT:
A device for detecting the solar radiation quantity of the sunlight coming in the passenger compartment of an automobile is construct to correct a solar radiation quantity by adding an amount of correction to the solar radiation quantity obtained based on the composite of plural detected values from a solar radiation sensor when the direction of the sunlight is deviated from the direction of travel of the automobile beyond a prescribed range, whereby the solar radiation quantity used for the control of an automobile air-conditioner is prevented from being lowered in case of deviated solar radiation. The solar radiation quantity coming into a rear portion of the passenger compartment is detected and compared with the front solar radiation quantity. A larger one of the front and rear solar radiation quantities is used as a solar radiation quantity for the control of the automobile air-conditioner to cope with the solar radiation coming from every direction relative to the direction of travel of the automobile.
REFERENCES:
patent: 4760772 (1988-08-01), Horiguchi et al.
patent: 4961462 (1990-10-01), Iida et al.
patent: 5020424 (1991-06-01), Iida et al.
Lee John R.
Nelms David C.
Zexel Corporation
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