Disclosed are air conditioning apparatus and system for electric motor vehicles, in which a sub-heat exchanger is provided between a heat exchanger and an electric heater, and the sub-heat exchanger is moved towards the heat exchanger or the electric heater so that heat is conducted to the sub-heat exchanger depending on whether or not the heat exchanger and the electric heater are operated depending on a heating condition, thereby increasing a heat dissipation area through the sub-heat exchanger during heating and thus being capable of improving heating performance.

In the present disclosure, heat sources for cooling and heating conditioning air are integrated as a coolant, both cooling performance and heating performance are ensured only by the coolant, and an entire package is reduced. That is, since a first air conditioning heat exchanger and a second air conditioning heat exchanger adjust a temperature of air, various types of air conditioning modes including cooling and heating modes may be implemented without using a separate temperature adjusting door. Accordingly, an overall size of an air conditioner is reduced. In addition, during cooling and heating processes, the first air conditioning heat exchanger and the second air conditioning heat exchanger are integrated and utilized. Therefore, the size of the heat exchanger may be reduced, the interior space may be ensured, and the air conditioning performance may be ensured without increasing a size of the heat exchanger.

A cargo transport heating system is utilized for a truck that includes a cargo containment and a combustion engine having a coolant inlet and a coolant outlet. The cargo transport heating system includes a heat exchanger, a coolant pump, and a combustion engine coolant having a low toxicity. The heat exchanger is disposed in the cargo containment, and is in fluid communication with the first coolant inlet. The coolant pump is in fluid communication with the coolant outlet and the heat exchanger, and pumps the combustion engine coolant through the first coolant inlet, the coolant outlet, and the heat exchanger.

A vehicular heat management system includes a refrigerant circulation line configured to cool or heat a passenger compartment by generating a hot air or a cold air depending on a flow direction of a refrigerant, a cooling water circulation line configured to heat the passenger compartment with waste heat of an engine by allowing cooling water of the engine to circulate through a heater core, a refrigerant-cooling water heat exchanger disposed in the cooling water circulation line to allow the refrigerant and the cooling water to exchange heat, and an engine cooling water independent circulation unit configured to allow the cooling water passed through the engine to bypass the heater core and the refrigerant-cooling water heat exchanger.

Presented are joint active thermal management (JATM) systems with heat exchanger storage of surplus refrigerant, methods for making/operating such systems, and vehicles equipped with such systems. A JATM system includes a coolant loop that fluidly connects to a vehicle battery system for pumping thereto coolant, an oil loop thermally coupled to the coolant loop and fluidly connected to a vehicle powertrain system for pumping thereto oil, and a refrigerant loop thermally coupled to the coolant loop and operable to circulate refrigerant for heating/cooling a passenger compartment. An electronic controller determines if a current amount of refrigerant in the refrigerant loop exceeds a calibrated threshold for the current operating mode of the JATM system. If so, the controller determines if one of the refrigerant loop's heat exchangers is available to store excess refrigerant. If the heat exchanger is available, the refrigerant loop stores excess refrigerant in the available refrigerant heat exchanger.

A reheating process for operating a cooling system having a heat pump function for a motor vehicle. The reheating process includes steps of determining a heat differential value by comparing a heat emission actual value at the heating register to a heat emission target value, and adjusting at least one operating setting of the cooling system, so that the power consumption in the cooling system is increased if the heat differential value is greater than 0 and less than a heat differential threshold value.

A thermal management system includes a high-temperature side heating medium circuit, a low-temperature side heating medium circuit, a device heating medium circuit, a circuit connection portion and a circuit switch unit. The circuit switch unit switches between an operation mode in which a heating medium that passed through the low-temperature side heating medium circuit is circulated through any one of the high-temperature side heating medium circuit and the device heating medium circuit via the circuit connection portion and an operation mode in which the high-temperature side heating medium circuit, the low-temperature side heating medium circuit, and the device heating medium circuit are connected via the circuit connection portion, and the heating medium is circulated through a heat generation device, a device heat exchange unit, a heating unit, and a heater core.

An Integrated thermal management valve (ITM) control apparatus of a vehicle includes a driving information generator that generates driving information of the vehicle, a refrigerant pressure measuring device that measures a refrigerant pressure of a vehicle air conditioner of the vehicle, and an ITM controller that is configured to control the ITM of the vehicle, according to the generated driving information and the measured refrigerant pressure.

An integrated thermal management circuit for vehicles, includes a refrigerant line configured so that a refrigerant subsequently flows into a compressor and a refrigerant heater, the refrigerant discharged from the refrigerant heater passes through an internal condenser or an integrated chiller and then flows into an external condenser, and the refrigerant discharged from the external condenser passes through the integrated chiller or an evaporator and then flows into the compressor, a battery cooling line configured so that a coolant circulates between a battery and an integrated radiator or the integrated chiller, an electronic part cooling line configured so that the coolant circulates between an electronic driving unit and the integrated radiator or the integrated chiller, and a heat radiation control valve provided between the refrigerant heater and the internal condenser on the refrigerant line and configured to control an amount of heat radiated by the internal condenser.

A thermal management system includes a refrigerant loop, a battery coolant loop, and a motor coolant loop. The refrigerant loop includes a compressor selectively communicating with at least two of a condenser, an evaporator, and a heat exchanger. The battery coolant loop includes a first bypass path connected to the heat exchanger. The motor coolant loop includes a second bypass path connected to the radiator. A valve package includes ten outer ports and eight inner channels. Three outer ports connect to the heat exchanger, one of which being connected to the first bypass path. Two outer ports connect to the power supply system. Two outer ports connect to the powertrain system. Three outer ports connect to the radiator, one of which being connected to the second bypass path. Eight of the ten outer ports selectively communicate with four of the eight inner channels.