Vehicle Automatic Defrost System and Control Method for External Window Surface

A system for automatically controlling a defog/defrost function of a vehicle climate control system includes a controller configured to calculate an ambient dew point temperature value from a plurality of inputs received from a sensor array. The controller is further configured to set a condensation...

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Bibliographic Details
Main Authors Greiner, Christopher Mark, Wang, Kai
Format Patent
LanguageEnglish
Published 28.11.2019
Subjects
ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES
PERFORMING OPERATIONS
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
TRANSPORTING
VEHICLES IN GENERAL
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Summary:A system for automatically controlling a defog/defrost function of a vehicle climate control system includes a controller configured to calculate an ambient dew point temperature value from a plurality of inputs received from a sensor array. The controller is further configured to set a condensation indicator if a calculated difference between a window exterior surface temperature value input received from the sensor array and the calculated ambient dew point temperature value is less than or equal to a predetermined threshold value. The controller actuates the vehicle climate control system defog/defrost function and/or a window wiper system in response to the set condensation indicator.
Bibliography:Application Number: US201815986905