Method for controlling vehicle HVAC system
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United States of America Patent
Stats
-
Sep 24, 2024
Grant Date -
May 25, 2023
app pub date -
Jul 19, 2022
filing date -
Nov 22, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An embodiment method for controlling a heating, ventilation, and air conditioning (HVAC) system of a vehicle includes determining a target subcooled temperature of a refrigerant based on a temperature and a pressure of the refrigerant discharged from an outlet of a compressor when the compressor operates, calculating a change in enthalpy of the refrigerant based on the determined target subcooled temperature in a process of condensing and subcooling the refrigerant, calculating a change in enthalpy of air passing over an exterior surface of a condenser based on the calculated refrigerant enthalpy change, and calculating a required fan duty of a cooling fan based on the calculated air enthalpy change, wherein the cooling fan is configured to blow the air to the condenser.
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