A heat pump system for a vehicle includes a valve, an electrical component cooling device, a battery cooling device, an indoor heating device, an indoor cooling device, a centralized energy device, and a chiller to improve heating efficiency by regulating a temperature of a battery module by use of one chiller in which a cooler and a refrigerant exchange heat, recovers various heat sources in a heating mode of the vehicle and utilizes the recovered heat sources for indoor heating.

A vehicle arrangement (20) for thawing thermal energy from and/or rejecting thermal energy to a plurality of components in a vehicle, the arrangement comprising a heat-pump assembly (12) comprising a first heat-pump section (18) at a first temperature and a second heat-pump section (22) at a second temperature different from the first temperature, and a first thermal energy distribution path (26) for transporting a first carrier fluid and extending through at least a portion of the first heat-pump section (18), and a second thermal energy distribution path (28) for transporting a second carrier fluid and extending through at least a portion of the second heat-pump section (22). The arrangement further comprises a first circulation pump (32) associated with the first thermal energy distribution path (26) for pumping the first carrier fluid around the first thermal energy distribution path and a second circulation pump (34) associated with the second thermal energy distribution path (28) for pumping the second carrier fluid around the second thermal energy distribution path. In addition the system comprises means (78-100) for selectively connecting at least one of the plurality of vehicle components to at least one of the thermal energy distribution paths so as to draw thermal energy from and/or reject thermal energy to said vehicle component or components.

Disclosed is a heat exchanger capable of exchanging heat between coolant and refrigerant of different kinds in one device and providing an effective heat exchange ratio between the coolant and the refrigerant. The heat exchanger includes a refrigerant flow path having a refrigerant inlet and a refrigerant outlet, and a coolant flow path through which coolant flows to exchange heat with the refrigerant. The coolant flow path includes a first coolant flow path where first coolant flows, and a second coolant flow path where second coolant with a different kind from the first coolant flows. The heat exchanger is partitioned into a first heat exchange section, in which the first coolant exchanges heat with the refrigerant and a second heat exchange section, in which the second coolant exchanges heat with the refrigerant, so that the heat exchange in the first heat exchange section and the heat exchange in the second heat exchange are carried out independently.

A heat pump system for a vehicle controls a temperature of a battery module by use of one chiller in which a coolant and a refrigerant are heat-exchanged and that improves heating efficiency by recovering heat from various heat sources in a heating mode of a vehicle to use them for indoor heating, including: a valve, an electrical component cooling device, a battery cooling device, an indoor heating device, an indoor cooling device, a centralized energy device, and a chiller, wherein a condenser included in the centralized energy device is connected to the second line through the second valve to condense the refrigerant supplied through the refrigerant line through heat-exchange with the coolant and is provided in a sixth line through which the coolant flows; and a first end portion of the third line is connected to a third valve provided in the sixth line.

An air conditioner system for an electric motor mobility is provided. The air conditioner system is configured so that an external condenser is spaced from a radiator at a front portion of the mobility, the external condenser performs heat exchange with air introduced from a location other than the front portion of the mobility, so that an active air flap is controlled to be closed in an indoor heating condition. Therefore, as the air resistance is reduced while the mobility drives under the indoor heating condition, the air resistance is reduced and the aerodynamic performance of the mobility is improved.

An embodiment vehicle thermal management system includes a first refrigeration cycle including a first refrigerant loop in which a first refrigerant is circulated, a battery cooling subsystem including a battery coolant loop in which a battery-side coolant is circulated, wherein the battery coolant loop is fluidly connected to a battery, a second refrigeration cycle including a second refrigerant loop in which a second refrigerant is circulated, the second refrigeration cycle comprising a condenser thermally connected to the battery cooling subsystem, a refrigerant chiller thermally connecting the first refrigeration cycle and the second refrigeration cycle, and a battery chiller thermally connecting the second refrigeration cycle and the battery cooling subsystem, wherein the condenser is located on a downstream side of the battery chiller in the second refrigerant loop.

An air conditioner includes a battery temperature adjustment device which adjusts the temperature of a battery and has a refrigerant-heat medium heat exchanger to exchange heat between a refrigerant and a heat medium. A controller executes a first heating/battery cooling mode to let the refrigerant discharged from a compressor radiate heat in a radiator, decompress the refrigerant, and then let the refrigerant absorb heat in an outdoor heat exchanger and the refrigerant-heat medium heat exchanger, and a second heating/battery cooling mode to let the refrigerant discharged from the compressor radiate heat in the radiator and the outdoor heat exchanger, decompress the refrigerant, and then let the refrigerant absorb heat in the refrigerant-heat medium heat exchanger.

Methods and system for providing heat to a vehicle are presented. In one example, a heat pump supplies thermal energy to an engine to reduce engine emissions during engine starting. Further, heating the engine via the heat pump may also reduce engine friction at colder ambient temperatures where oil viscosity may be increased.

A refrigerant loop of a vapor injection heat pump includes a compressor, first and second expansion valves, and first and second separator valves. The separator valves allow an entire refrigerant flow to pass therethrough or operate to separate vapor and liquid components of expanded refrigerant and inject the vapor component into a suction port of the compressor. Vapor injection occurs in both heating and cooling modes of operation and may depend upon an ambient condition (e.g., high or low ambient temperatures). An accumulator receives an output refrigerant of the heat exchangers dependent upon the mode and directs a vapor component into another suction port of the compressor. A control module controls at least the first and second expansion valves and first and second separator valves dependent upon the mode of operation which include, among others, heating, cooling, and dehumidification and re-heating.

A device that controls a temperature of a battery onboard a motor vehicle includes an air-conditioning circuit of the motor vehicle in which circulates, as a first heat-transfer fluid, an air-conditioning fluid. The air-conditioning circuit includes at least one evaporator for direct transfer of heat emitted by the battery to the air-conditioning fluid and a compressor to increase a pressure and a temperature of the air-conditioning fluid. The device also includes a cooling circuit in which circulates, as a second heat-transfer fluid, a cooling fluid. The cooling circuit includes at least one first heat source to heat the cooling fluid and at least one main radiator to cool the cooling fluid that can be short-circuited. The cooling circuit also includes a battery radiator to directly transfer heat conveyed by the hot cooling fluid to the battery when the main radiator of the cooling circuit is short-circuited.