Valeo Systemes Thermiques

Wissem Nouainia

Jin-Ming Liu

Muriel Porto

Régis Beauvis

The invention relates to a method for controlling a thermal conditioning circuit () for thermally conditioning an air flow (), notably intended for a motor vehicle interior (), the circuit comprising a heat exchanger () configured to have a refrigerant pass through it and exchange heat with the air flow (), the heat exchanger () being configured to operate selectively in at least: —a mode known as cooling mode, —a mode known as heating mode, the method comprising the steps of: —evaluating a level of humidity in a region in contact with an exterior surface () of the heat exchanger (), —detecting an instruction to switch from cooling mode to heating mode, —if the evaluated level of humidity is below a predetermined first threshold (s), allowing refrigerant to circulate through the exchanger () in response to the instruction to switch to heating mode, —if the level of humidity is above a predetermined second threshold (s), preventing the refrigerant from circulating through the exchanger () for a first predetermined length of time (D), so as to delay the switch to heating mode.

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Le Mesnil Saint-Denis, France

Wissem Nouainia