Valeo Systemes Thermiques

Régis Beauvis

Jin-Ming Liu

Muriel Porto

Jugurtha Benouali

Isabelle Citti

Bernard Aoun

Wissem Nouainia

Rody El Chammas

Jinming Liu

Maurizio Alessio

Laurent Delaforge

Patricia Gardie

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.

Method for controlling an air-flow thermal conditioning unit

The present invention relates to a method for controlling a thermal management device () of a motor vehicle comprising a refrigerant-fluid circuit comprising a compressor (), a first heat exchanger (), an expansion device () and the second heat exchanger (), said thermal management device () further comprising an electric heating device (), said control method involving, upon a starting of the thermal management device () from cold, the following steps: direct or indirect heating of the internal air flow () by the electrical heating device () alone until said internal air flow () reaches a target temperature and/or until a predetermined timer has run out, —when the internal air flow () has reached its target temperature and/or when the timer has run out, starting the compressor () so that the refrigerant-fluid circuit draws heat energy from the external air flow () at the second heat exchanger () and gives up said heat energy at the first heat exchanger ().

Method for controlling a thermal management device of a motor vehicle

The invention relates to a heating, ventilation and/or air conditioning loop () inside of which flows a coolant, and including a compressor (), an outer heat exchanger (), a restitution heat exchanger () and a first expansion member () provided downstream from the restitution heat exchanger () in the flow direction () of the coolant in the heating, ventilation and/or air conditioning loop (). The heating, ventilation and/or air conditioning loop () includes means () for bypassing the inner heat exchanger () and the first expansion member (). The present invention also relates to a heating, ventilation and/or air conditioning equipment () including such a heating, ventilation and/or air conditioning loop ().

Heating, ventilation and/or air conditioning loop and heating, ventilation and/or air conditioning equipment including such heating, ventilation and/or air conditioning loop

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Les Bréviaires, France

Régis Beauvis