A control method of a heat pump system for a vehicle may include a first cooling apparatus having a first radiator, a first water pump, an electrical component, a valve, and a branch line, which are connected by a first coolant line and circulate a first coolant by the first water pump to the electrical component; a second cooling apparatus including a second radiator and a second water pump connected by a second coolant line; and an air conditioning apparatus including a compressor, a heater, an expansion valve, and a heat exchanger which are connected by a refrigerant line circulated with a refrigerant.

A heat request arbitration device includes: a first thermal circuit; a second thermal circuit; a third thermal circuit having path patterns that are selectable as a path that is heat exchangeable with each of the first thermal circuit and the second thermal circuit; and heat source units configured to absorb heat or radiate heat via a heat medium circulating in at least one of the thermal circuits; a derivation unit configured to derive requests related to heat flow control of heat absorbed or radiated by each of the heat source units; and a selection unit configured to select a path for at least one of the thermal circuits so as to satisfy at least one of the requests related to the heat flow control based on the requests related to the heat flow control derived by the derivation unit.

A temperature management system for a vehicle is disclosed. The temperature management system includes a refrigerant circuit and a heat transfer fluid loop. The refrigerant circuit includes a compression device, an expansion member, a first heat exchanger configured to exchange heat between the refrigerant and an air flow external to a vehicle interior, a second heat exchanger configured to exchange heat between the refrigerant and the heat transfer fluid circulating in the loop, and a fourth heat exchanger configured to exchange heat between the refrigerant and an air flow inside the vehicle interior. The the heat transfer fluid loop includes, on a main line, the second heat exchanger and a primary radiator configured to exchange heat between the air flow external to the vehicle interior and the heat transfer fluid.

A vehicle air conditioner having a compressor to compress a refrigerant, an air flow passage to supply air to the vehicle; a radiator; an outdoor heat exchanger; a battery temperature adjustment device for letting a heat medium circulate through a battery mounted in the vehicle, thereby adjusting a temperature of the battery; and a control device. The battery temperature adjustment device has a refrigerant-heat medium heat exchanger for performing exchange of heat between the refrigerant and the heat medium. The control device is configured to execute: a radiator and outdoor heat exchanger heating/battery cooling mode, and an obstruct inflow heating/battery cooling mode.

An integrated thermal management circuit for a vehicle is introduced, which includes a refrigerant line on which a refrigerant flows into the compressor; a battery cooling line making a cooling water circulate between a battery and a battery radiator or between the battery and the battery chiller; an electric cooling line making the cooling water circulate between an electronic driving unit and an electric radiator or between the electronic driving unit and the electric chiller; and a chiller control valve provided at an upstream point of the electric chiller and the battery chiller on the chiller line, and making the refrigerant discharged from the external heat exchanger flow into the electric chiller or the battery chiller.

A vehicular air conditioning device is provided which is capable of cooling a heat medium of a battery temperature adjustment device by a refrigerant in a refrigerant circuit to improve operation efficiency when a battery is to be cooled. The vehicular air conditioning device includes a battery temperature adjustment device (61) for circulating a heat medium in a battery (55) to cool the same, a refrigerant-heat medium heat exchanger (64) for exchanging heat between at least part of the refrigerant flowing out from an outdoor heat exchanger (7) and the heat medium circulating in the battery temperature adjustment device, and an auxiliary expansion valve (73) for decompressing the refrigerant flowing into the refrigerant-heat medium heat exchanger. A control device controls a compressor (2) or the auxiliary expansion valve on the basis of a temperature Tw of the refrigerant of the refrigerant-heat medium heat exchanger to thereby adjust a battery temperature Tb to a target battery temperature TBO.

A refrigeration cycle device includes: a compressor; a heat radiating unit that causes refrigerant to heat air supplied to a space inside a vehicle cabin; a decompression unit that decompresses the refrigerant; an outside air heat absorbing unit that causes the refrigerant to absorb heat from outside air; a waste heat absorbing unit that causes the refrigerant to absorb waste heat of a waste heat device; a shutter that opens and closes a passage for the outside air introduced into the outside air heat absorbing unit; and a control unit that closes the shutter when it is determined that an amount of waste heat of the waste heat device is larger than an amount of heat absorbed by the refrigerant in the outside air heat absorbing unit and the waste heat absorbing unit.

A thermal control system for a vehicle includes a first heat exchanger configured to thermally condition first intake airflow received at a first end of a vehicle cabin, a second heat exchanger configured to thermally condition second intake airflow received at a second end the vehicle cabin, a thermal loop circulating a working fluid between the first heat exchanger and the second heat exchanger, and a flow control system configured to cause the working fluid to circulate in opposite flow directions through the thermal loop for the first and second heat exchangers to operate in heating and cooling modes.

A liquid to refrigerant heat exchanger includes an enclosed coolant volume that is at least partially defined by a plastic housing and by a metal closure plate. The metal closure plate can be part of a brazed assembly containing a continuous refrigerant flow path. The refrigerant flow path is disposed within the coolant volume, where heat can be transferred between the refrigerant within the refrigerant flow path and the liquid within the coolant volume. The plastic housing can at least partially surround the refrigerant flow path to at least partially bound a liquid flow path along a portion of the coolant volume. An inlet diffuser and an outlet diffuser can be mounted to the housing to direct the liquid through the housing. The plastic housing is sealingly joined to the closure plate along an outer periphery of the closure plate.

Provided is a vehicle air-conditioning system configured so that air-cooling/heating can be efficiently performed. The system (10, 20, 30, 40) includes a vapor compression heat pump unit (HP) having at least a compressor (CP), a condenser (CD), an expansion mechanism (EX), and an evaporator (EV) on a refrigerant circuit (RC), a brine flow path network (BC) having multiple pumps (PC, PH) and multiple flow path switching valves (TV1 to TV8, V1 to V9), and a vehicle indoor air-conditioning unit (AC) having an air duct (AD) and multiple vehicle indoor heat exchangers (HXC1, HXC2) arranged in series in the air duct. Upon actuation in an air-cooling mode or an air-heating mode accompanied by neither dehumidification nor defrosting, brine flows in series in the multiple vehicle indoor heat exchangers.