Abstract: The invention relates to a thermal management system for a hybrid or electric vehicle, including an air conditioning circuit including a two-fluid heat exchanger arranged jointly on a heat transfer fluid circuit, the heat transfer fluid circuit including: a first branch including a first pump, a heat transfer fluid heating device and the two-fluid heat exchanger, a second branch connected directly to the first branch. The heat transfer fluid circuit is configured such that, in a mode of heating the internal air flow, all of the heat transfer fluid passing through the heating device then passes through the two-fluid heat exchanger before returning to the first pump via the second branch.

Abstract: A method for controlling a thermal conditioning system is disclosed. The thermal conditioning system includes a refrigerant unit configured to circulate a refrigerant. The refrigerant circuit includes a main loop and a first bypass branch. The main loop includes a compression device, a first heat exchanger configured to exchange heat with a first heat transfer fluid, a first expansion device, and a first evaporator configured to exchange heat with an element of a powertrain of a motor vehicle via a second heat transfer fluid. The method includes determining a pressure of the refrigerant at the outlet of the first evaporator and controlling, depending on the determined pressure, at least one parameter so that the pressure of the refrigerant at the outlet of the first evaporator is below a predetermined pressure threshold.

Abstract: A reversible thermal management device for a motor vehicle includes a refrigerant fluid circuit containing a main loop which has, successively, a compressor, an internal condenser, a first expansion device and an external evaporator/condenser. The device also has a three bypass branches. The third bypass branch has a heat exchanger. The device further includes a device for redirecting the refrigerant fluid coming from the internal condenser towards the first expansion device or the first bypass branch, a stop valve for the refrigerant fluid, arranged on the main loop, a first check valve arranged on the second bypass branch to block the refrigerant fluid coming from the internal condenser, a second check valve arranged on the main loop to block the refrigerant fluid coming from the evaporator/condenser, and a device for redirecting fluid coming from the first expansion device towards the heat exchanger of the third bypass branch or the evaporator/condenser.

Abstract: Fluid circulation valve, the said valve comprising a housing (1) and a body (2) for circulation of fluid, the said body (2) being located at least partially within the said housing (1), the said body (2) being attached to the housing (1) and having a passage (4) for fluid between the said body (2) and the said housing (1), the said valve further comprising a control member (30) that can be actuated electromagnetically, the said control member (30) being able to move with respect to the said body (2) so as to selectively open or close the said passage (4), the said body (2) having at least locally a tubular configuration at the said passage (4), the said control member (30) being able to slide along the said body (2) at least at the said passage (4).

Abstract: Disclosed is a method for defrosting a thermal regulation circuit for a vehicle, in particular for a motor vehicle, the thermal regulation circuit being provided with a refrigerant circulation loop comprising a first heat exchanger (2), susceptible to frosting, as well as second and third exchangers (4, 6), the second and third exchangers (4, 6) being intended to exchange heat between the refrigerant and a heat transfer fluid, the loop further comprising a bottle (12) for storing a part of the refrigerant, the method comprising a step, referred to as defrosting, of circulating the refrigerant successively in the second heat exchanger (4), the bottle (12) and then the first and third exchangers (2, 6), with cooling of the refrigerant in the first and second exchangers (2, 4) and heating of the refrigerant in the third exchanger (6).

Abstract: Fluid circulation valve, the said valve comprising a housing (1) and a body (2) for circulation of fluid, the said body (2) being located at least partially within the said housing (1), the said body (2) being attached to the housing (1) and having a passage (4) for fluid between the said body (2) and the said housing (1), the said valve further comprising a control member (30) that can be actuated electromagnetically, the said control member (30) being able to move with respect to the said body (2) so as to selectively open or close the said passage (4), the said body (2) having at least locally a tubular configuration at the said passage (4), the said control member (30) being able to slide along the said body (2) at least at the said passage (4).

Abstract: A reversible thermal management device for a motor vehicle includes a refrigerant fluid circuit containing a main loop which has, successively, a compressor, an internal condenser, a first expansion device and an external evaporator/condenser, a first, second, and third bypass branch, the third branch having at least one heat exchanger, a device for redirecting the refrigerant fluid coming from the internal condenser towards the first expansion device or the first bypass branch, a stop valve for the refrigerant fluid, arranged on the main loop, a first check valve arranged on the second bypass branch to block the refrigerant fluid coming from the internal condenser, a second check valve arranged on the main loop to block the refrigerant fluid coming from the evaporator/condenser, and a device for redirecting the refrigerant fluid coming from the first expansion device towards the at least one heat exchanger of the third bypass branch or the evaporator/condenser.