System and method for defogging a vehicle window

Details System and method for defogging a vehicle window System and method for defogging a vehicle window

1998-06-01

2000-09-05

Atkinson, Christopher

Heat exchange

With timer, programmer, time delay, or condition responsive...

Having heating and cooling capability

165 43, 165204, 165228, 165249, 165263, 621766, 62203, 62229, 236 13, 236 44C, B60H 100

Patent

active

061128074

ABSTRACT:
There is disclosed a system and method for preventing fogging of the windows of an automotive vehicle. The system and method operate the air conditioning system of the vehicle at temperatures where a high degree of probability of fogging exists. The method includes the steps of measuring the ambient temperature, the evaporator core temperature and operating the air conditioning compressor at specific duty cycles depending upon these temperatures. The duty cycle will be determined based upon these temperature variables as well as the relative humidity within the passenger cabin of the vehicle.

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patent: 5634348 (1997-06-01), Ikeda et al.
patent: 5755378 (1998-05-01), Dage et al.

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