The invention concerns a method for managing a thermal management device (1) for a motor vehicle, comprising the following steps: —increasing the speed of rotation of the compressor (3) to its maximum speed, —determining a modified setpoint temperature (T15-sp3) of the third element (300) greater than the first setpoint temperature (T15-sp1), so that the temperature of the second element (200) at the outlet of the first evaporator (11) tends towards its setpoint temperature (T11-sp), —adjusting the opening diameter of the second expansion device (13) so that the temperature of the third element (300) at the outlet of the second evaporator (15) reaches a modified setpoint temperature (T15-sp3), until the temperature of the second element (200) at the outlet of the first evaporator (11) reaches the setpoint temperature (T11-sp). The invention further relates to the thermal management device (1) for implementing said management method.

A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.

A refrigeration cycle device includes a refrigeration cycle, an outdoor heat exchanger, a cooling necessity determination unit, a determination reference setting unit, and a cooling control unit. The cooling necessity determination unit determines whether or not to cool a battery depending on whether or not a physical quantity that correlates with a temperature of the battery is equal to or more than a predetermined reference physical quantity. The determination reference setting unit sets the reference physical quantity for the cooling necessity determination unit according to the outdoor heat exchanger functioning as a heat absorber or radiator. When the outdoor heat exchanger functions as heat absorber, the determination reference setting unit sets a second reference physical quantity smaller than a first reference physical quantity set when the outdoor heat exchanger functions as radiator.

A vehicle thermal management system includes selective use of a liquid cooled gas cooler (LCGC) and conductive heat exchangers between heating, cooling, battery, and powertrain thermal management loops to increase temperature control and efficiency of the system.

A cooling system for a motor vehicle has an electrical energy storage device for driving the motor vehicle; a chiller through which a refrigeration circuit and, fluidically separated therefrom, a main cooling circuit can flow; one or more control elements; at least one heat source, and one or more ambient air coolers. In a first mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, the energy storage device and none of the ambient air coolers. In a second mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, the energy storage device and at least one of the ambient air coolers. In a third mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, at least one of the ambient air coolers and the heat source.

A thermal management system includes a refrigerant system, which includes a compressor, a flow control device, a valve member, a first heat exchanger, a second heat exchanger, and a third heat exchanger. The flow control device includes a first throttle unit, a second throttle unit, and a valve assembly; the flow control device includes a first port, a second port, and a third port; a first connection port of the first heat exchanger is in communication with the second port, and a first connection port of the second heat exchanger is in communication with the third port, while a first connection port of the third heat exchanger is in communication with the first port. The thermal management system includes a first operating state and a second operating state.

An indoor heating line is arranged to pass through a heater core for a coolant heater and indoor air conditioning, and is provided with a first pump so that coolant can flow. A battery heating line is branched from a downstream point of the heater core and connected to an upstream point of the coolant heater after passing through a battery heat exchange part for temperature-raising a high voltage battery, where the battery heating line includes a first heat exchange flow passage that connects a downstream point of the heater core to a first side of the battery heat exchange part, and a second heat exchange flow passage that connects a second side thereof and an upstream point of the coolant heater, where the first heat exchange flow passage and the second heat exchange flow passage are configured to mutually exchange heat.

A vehicle heat pump system is provided. The system includes a battery coolant line connected to a battery module and into which a coolant flows. A cooling device includes a radiator and a first water pump connected to a coolant line, to circulate a coolant in the coolant line to cool electrical equipment, and to be selectively connected to the battery coolant line via a first valve. A chiller is disposed in the battery coolant line, to be connected to a refrigerant line of an air conditioner via a connecting line, and to adjust a temperature of a coolant or a refrigerant by selectively exchanging heat between the coolant and refrigerant flowing into the chiller. An integrated control valve is connected to the refrigerant line and the connecting line to adjust a refrigerant flow direction and to selectively expand a refrigerant passing through the inside of the integrated control valve.

An integrated thermal management system may include a battery line connected to a high-voltage battery, having a first radiator, and having cooling water flowing by a first pump; an internal heating line connected to an internal air-conditioning heating core, having a cooling water heater therein, having cooling water flowing by a second pump, and having a first valve at a downstream side of the heating core; a first battery heating line formed to be diverged from the internal heating line at a downstream side of the internal air-conditioning heating core and connected to the battery line at an upstream side of the high-voltage battery; a second battery heating line diverged heating line formed to be diverged from the battery line at a downstream side of the high-voltage battery and connected to the internal heating line; and a controller operating the first pump and the second pump.

A thermal request mediating device includes a calculation unit configured to calculate amounts of heat for thermal circuits, a mediation unit configured to determine amounts of absorbed heat or amounts of discharged heat which are allocated to the thermal circuits based on amounts of heat transferable between the thermal circuits, and a distribution unit configured to distribute amounts of absorbed heat or amounts of discharged heat to units which are included in each thermal circuit based on the determined amounts of absorbed heat or amounts of discharged heat.