A multi-mode vehicle thermal management system is provided that allows efficient thermal communication between a refrigerant-based thermal control loop and two non-refrigerant-based thermal control loops, where one of the non-refrigerant-based loops is thermally coupled to the vehicle's battery system and the other of the non-refrigerant-based control circuits is thermally coupled to the vehicle's drive train. The refrigerant-based control loop may be operated either in a heating mode or a cooling mode and is coupled to the vehicle's HVAC system using a refrigerant-air heat exchanger, and to the battery thermal control loop using refrigerant-fluid heat exchangers.

A battery heating device includes: a radiator and a heater core arranged in parallel with each other; a battery temperature adjusting unit for heating a battery with a heat medium; a first branch branching the heat medium between the radiator and the heater core; a first confluence where the heat medium merges; a second branch where the heat medium from a heat emitter is branched to the battery temperature adjustment unit; a second confluence where the heat medium flowing through the battery temperature adjustment unit merges; and a radiator flow rate reducing part arranged in a passage for the heat medium from the first branch or the second branch closer to the radiator to the first confluence or the second confluence closer to the radiator via the radiator.

Disclosed is a heat pump system for a vehicle, providing for selective heat-exchanging heat energy generated from a coolant with a coolant upon condensing and evaporation of the coolant to control an internal temperature of the vehicle using the heat-exchanged coolant of a low temperature or a high temperature. The heat pump system adjusts a temperature of a battery module by using one chiller that performs heat exchange between a refrigerant and a coolant and improves the heating efficiency of the vehicle using a waste heat of an electrical component and a battery module.

An air-conditioning system for conditioning air in a vehicle passenger compartment including a housing having a first flow channel and a second flow channel for guiding air, and a refrigerant circulation system having at least two heat exchangers. An air guide device is disposed between the evaporator and the passenger compartment in the first flow channel, and an air guide device is disposed between the condenser/gas cooler and the passenger compartment in the second flow channel. The air guide device disposed in the first flow channel consists of multiple parts such as at least two members, and the members are respectively assigned to air channels extending to the passenger compartment, are independently controllable, and are movable so as to open or close the respective air channels.

An air conditioning heat pump system using an ejector may include a compression assembly, an outdoor heat exchanger, an indoor heat exchanger, an ejector, and a first to third electromagnetic valve and a controller. A first end of the compression assembly may be connected with the one end of the outdoor heat exchanger, a second end may be connected with one end of the indoor heat exchanger, a third end may connected with outlet end of the ejector, and a fourth end may be connected with another end of the outdoor heat exchanger. One end of the outdoor heat exchanger may also be connected with a jet inlet of the ejector through the first electromagnetic valve, and another end may also be connected with the jet inlet of the ejector through the second electromagnetic valve and the third electromagnetic valve.

A vehicle HVAC system including a heat pump system. The heat pumps system including a refrigerant module mounting manifold, the manifold including a first plate and a second plate. The first plate and the second plate are configured to couple together such that together they define a plurality of channels for directing the flow of refrigerant through the heat pump system. One or more auxiliary modules are fluidly coupled to the refrigerant module mounting manifold.

A heating temperature is appropriately estimated according to an operation mode to achieve comfortable vehicle interior air conditioning. A vehicular air conditioning device 1 includes a compressor 2, an air flow passage 3, a radiator 4 for heating air to be supplied to a vehicle interior, a heat absorber 9 for cooling the air to be supplied to the vehicle interior, and a heat pump controller. The heat pump controller calculates a heating temperature TH being the temperature of air on a leeward side of the radiator and use the heating temperature in control, and calculates the heating temperature TH using an estimation formula which differs depending on the operation mode.

A vehicle temperature-control system includes a refrigerant circuit (22). The refrigerant circuit includes a compressor (24), at least one condenser heat-exchanger assembly (28) around which air (L1) to be heated can flow, and at least one evaporator heat-exchanger assembly (40), around which air (L2) to be cooled can flow. For each of the two heat-exchanger assemblies (28, 40), there are two inflow regions (48, 50, 78, 80) and two outflow regions (62, 64, 84, 86), which can be switched by means of flap assemblies (44, 56, 88, 92). Both a heating operating mode and a cooling operating mode are selected with the flap assemblies. A heat pump operation in the vehicle, e.g., a bus, is enabled.

A heat management system for vehicles comprises: a first circulation circuit which cools an engine body of an internal combustion engine and includes a first pump for pressure-feeding a refrigerant; a second circulation circuit including an exhaust heat recovery apparatus for recovering exhaust heat from the internal combustion engine, a heater core used for air-conditioning of a vehicle, and a second pump for pressure-feeding the refrigerant; communication passages allowing the first circulation circuit to communicate with the second circulation circuit; and an on-off valve provided in the first communication passage, and switching between the communication between the first circulation circuit and the second circulation circuit and the preventing of communication therebetween, wherein the on-off valve is controlled such that the refrigerant temperature of the first circulation circuit is higher than that of the second circulation circuit.

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.