Sunshine sensor and air conditioner for vehicle

Details Sunshine sensor and air conditioner for vehicle Sunshine sensor and air conditioner for vehicle

1991-10-02

1993-01-26

Chambers, A. Michael

Automatic temperature and humidity regulation

Thermostatic

Hot and cold

126573, 2502034, G01J 120

Patent

active

051816547

ABSTRACT:
An air conditioner for use with a car employing a sunshine sensor having three light receiving elements. A first light receiving element faces upward and a second light receiving element and a third light receiving element are inclined toward a front side by an identical angle along an advancing direction of the car and are symmetrically inclined with respect the car advancing direction along a horizontal direction vertical to the car advancing direction. The inclination is determined such that a vector obtained by adding normal vectors respectively of light receiving surfaces of the light receiving elements has a direction substantially identical to a direction of sunshine which maximizes a quantity of heat supplied from the sunshine to the car. Outputs from the first, second, and third light receiving elements are added to each other to obtain a sunshine intensity.

REFERENCES:
patent: 4769531 (1988-09-01), Malek
patent: 4890460 (1990-01-01), Takari et al.
patent: 5117744 (1992-06-01), Zimmer et al.

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