Method and apparatus for controlling vehicular defroster

Details Method and apparatus for controlling vehicular defroster Method and apparatus for controlling vehicular defroster

1998-04-29

1999-10-26

Joyce, Harold

Ventilation

Vehicle

Condensation preventer

454 75, B60S 154

Patent

active

059718455

ABSTRACT:
A vehicular defroster control system comprising a single defroster selector switch for alternatively operating the air-conditioning defroster only or both the air-conditioning defroster and the electric heat-operated defroster, an environmental condition input unit for inputting environmental conditions including at least an ambient air temperature and a sunlight intensity, and an operation control means for judging whether or not the inputted ambient air temperature and the sunlight intensity are lower than previously set predetermined values, and operating the electric heat-operated defroster only when it is judged that both of the inputted ambient air temperature and the sunlight intensity are lower than the predetermined values.

REFERENCES:
patent: 5296678 (1994-03-01), Schnorf
patent: 5501267 (1996-03-01), Iritani et al.
patent: 5685162 (1997-11-01), Iritani et al.

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