Air conditioning apparatus with an improved sunlight correction

Details Air conditioning apparatus with an improved sunlight correction Air conditioning apparatus with an improved sunlight correction

1996-08-28

1998-01-06

Tapolcai, William E.

Automatic temperature and humidity regulation

Ventilator type

Electrically actuated

236 91C, 165203, 356222, 356225, F24F 700

Patent

active

057045445

ABSTRACT:
An air conditioning apparatus for a vehicle includes a first sunlight sensor disposed in a driver's seat side and a second sunlight sensor disposed in a passenger seat side space. The sunlight sensors are integrally formed with a filter and a Fresnel lens. When an elevation angle of sunlight is low, an inadequate correction of sunlight amounts is prevented by the Fresnel lens. Further, when sunlight enters the vehicle from the side, detected sunlight amounts detected by the first and second sunlight sensors are corrected so that a ratio or a difference between the detected sunlight amounts becomes large when the ratio or the difference is in a predetermined range. Therefore, when sunlight enters from the side, the correction of the detected sunlight amounts can be performed adequately so that passengers in the passenger compartment of the vehicle feel comfortable.

REFERENCES:
patent: 4760772 (1988-08-01), Horiguchi et al.
patent: 5072105 (1991-12-01), Osawa
patent: 5072106 (1991-12-01), Osawa
patent: 5181654 (1993-01-01), Yoshimi et al.
patent: 5432599 (1995-07-01), Orii et al.
patent: 5553661 (1996-09-01), Beyerlein et al.
patent: 5553775 (1996-09-01), Kato et al.

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