A vehicle heat management system includes a refrigerant circuit, a heating circuit, and a battery temperature regulation circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The heating circuit circulates a liquid that exchanges heat with the refrigerant through the heating circuit. The heating circuit regulates the temperature inside the passenger compartment. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery.

A vehicle heat management system includes a refrigerant circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit circulates a liquid cooled by a radiator circulates through the electric part cooling circuit, and is capable of cooling a first and second pieces for driving a vehicle. In a first mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid which has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.

A vehicular air conditioner includes an air conditioning, a heater core, a heat pump cycle unit, a temperature detector, and a controller. The heat pump cycle unit includes a first inside heat exchanger disposed downstream of the heater core in a flow direction of a conditioning air, a second inside heat exchanger disposed upstream of the heater core in the flow direction of the conditioning air, and an outside heat exchanger. The temperature detector is configured to detect a passage air temperature, the passage air temperature being a temperature of the conditioning air that has passed through the heater core. The controller is configured to selectively switch a circuit layout of the heat pump cycle unit between a cooling circuit, a heating circuit, and a dehumidifying-heating circuit based on the passage air temperature.

A thermal energy management system for a vehicle is provided that is configured to supply thermal energy to a passenger compartment of the vehicle. The thermal energy management system may include three thermal fluid loops. The first thermal fluid loop may include a coolant pump circulating a coolant through at least a vehicle battery, a transmission oil cooler of the vehicle, and a chiller such that the coolant is configured to selectively transfer thermal energy from the vehicle battery, the transmission oil cooler, and the chiller. The second thermal fluid loop may circulate oil through the transmission oil cooler. The third thermal fluid loop may circulate a refrigerant through at least the chiller and at least one condenser such that the third thermal fluid loop is configured to transfer thermal energy to the passenger compartment.

A vapor injection heat pump includes a compressor, a first valve directing a refrigerant of the compressor to a first or second heat exchanger dependent upon a mode of operation, an expansion device receiving the refrigerant from at least one of the heat exchangers, a vapor generator receiving an expanded liquid/vapor refrigerant mix from the first expansion device and directing a vapor component to a first input port of the compressor and a liquid component to at least one of the second heat exchanger and a third heat exchanger, via controlling a second valve, a second expansion device, a third expansion device, and a third valve. A second input of the compressor receives an output refrigerant from at least one of the second heat exchanger and the third heat exchanger dependent upon the mode of operation.

A vehicle heat management system is provided. The system includes a radiator module having a battery radiator and an electric component radiator. A valve module has an inner space that is divided into a first chamber and a second chamber. Each chamber includes a first passage, a second passage, and a third passage. The first passage connects each chamber to a battery radiator, the second passage connects each chamber to a high-voltage battery core, and the third chamber connects each chamber to an electric component radiator and an electric component core. Each chamber includes therein a guide unit that selectively closes the first passage, the second passage, or the third passage depending on a rotation angle thereof. An actuator that is connected to the guide unit adjusts the rotation angle of the guide unit.

A heating and cooling system for a vehicle may include: a refrigerant line provided to pass through a compressor, an interior heat exchanger for interior air-conditioning, an air-cooled condenser, and an evaporator core for interior air-conditioning, the refrigerant line configured such that a refrigerant flows therethrough; a coolant line provided to pass through a high-voltage battery core, an electric part core for an electric part, and a radiator for the electric part, the coolant line configured such that a coolant flows therethrough; and a heat exchanging part configured to exchange heat between the refrigerant flowing between the interior heat exchanger and the air-cooled condenser, and the coolant flowing between the electric part core and the radiator.

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

A vehicle heat management system includes a refrigerant circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit circulates a liquid cooled by a radiator circulates through the electric part cooling circuit, and is capable of cooling a first and second pieces for driving a vehicle. In a first mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid which has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.

There is provided a vehicle air conditioner which is capable of smoothly achieving a dehumidifying and heating mode without using an evaporation pressure adjustment valve, so that cost reduction is achievable. A controller executes a normal mode to control an operation of a compressor 2 on the basis of a radiator pressure PCI and control a valve position of an outdoor expansion valve 6 on the basis of a heat absorber temperature Te, and in this normal mode, when the valve position of the outdoor expansion valve 6 is maximized but the heat absorber temperature Te falls, the controller shifts to a heat absorber temperature control mode to control the operation of the compressor 2 on the basis of the temperature of a heat absorber 9 and generate heat from an auxiliary heater 23.