A method for operating a refrigeration system for a vehicle with a refrigerant circuit including a heat exchanger. A controllable environmental air flow (L) is flowed through the heat exchanger and the heat exchanger can be operated as a refrigerant condenser or a gas cooler for a refrigeration system operation.

A vehicle HVAC system includes: a casing to direct air from outdoors into the interior of a passenger compartment, an air blower blowing the air into the casing, an evaporator disposed in the casing, a heater core disposed downstream of the evaporator, and front and rear seat side temperature doors disposed between the evaporator and the heater core. A method for controlling the HVAC system includes: determining, by a controller, whether a required temperature for cooling rear seats is set to be lower than a required temperature for cooling front seats after an outdoor condition of a vehicle meets a reference high temperature condition; and lowering, by the controller, a target temperature of the evaporator based on the set required temperature for cooling the rear seats when the required temperature for cooling the rear seats is set to be lower than the required temperature for cooling the front seats.

A phase-change energy storage air duct of an automobile air conditioning system. A phase-change energy storage unit (2) is configured inside an air duct (1) of an air conditioning system. By means of phase-change heat absorption or release, residual heat in the air is absorbed, and the heat is released to air with a lower temperature, so that energy is recycled to achieve energy saving. The temperature of air entering a room or a carriage is kept stable, and thus the user experience is improved. When the air conditioning system fails, the phase-change energy storage unit (2) can still utilize stored cooling capacity or heat to cool down or heat up air in the air duct, so that a supply of air can be kept stable for a period of time, and thus the user experience is improved. The present application also relates to an automobile air conditioning system.

An air conditioner is disposed in a vehicle in which a driving device of a traveling power source is housed in an outer space separated from a cabin by a partition wall. The air conditioner includes: a temperature control unit that controls a temperature of air blown into the cabin; and plural air distribution ducts connected to the temperature control unit to guide temperature-controlled air having a temperature controlled by the temperature control unit to predetermined positions in the cabin. The temperature control unit is disposed in the outer space together with the driving device. Intermediate parts of the air distribution ducts located at least between the outer space and the cabin are bundled together and extended through a single insertion hole formed in the partition wall.

A method for operating a refrigeration system for a vehicle, the refrigeration system including a refrigerant circuit with a heat pump function. The refrigerant circuit has an exterior heat exchanger, which is operated as a condenser or gas cooler to perform a refrigeration system mode or which is operated as a heat pump evaporator to carry out a heat pump mode. The refrigerant circuit further has an interior heating condenser or heating gas cooler for carrying out a heating mode. The interior heating condenser or heating gas cooler is fluidically connected downstream of the exterior heat exchanger with a reheating expansion device therebetween to carry out a reheating mode. The opening cross-section of the reheating expansion device is controlled in accordance with a refrigeration system parameter indicating the required reheating power.

A vehicle air conditioner, wherein an air conditioner of an integrated heat pump system enables the improvement of cold air and warm air mixing characteristics so as to decrease left-right temperature differences, enables the implementation of independent left-right air conditioning, and enables the sufficient securement of an interior space of the vehicle.

A climate control system for a vehicle is suitable for combustible coolants and is a compact device for installation on a vehicle roof. A directly evaporating system includes an electrical switch box inside a compact climate control device for the vehicle and is partitioned so that, in the event of relevant leakages of assemblies containing coolant, the assembly cannot come into contact with the combustible coolant and no ignitable mixture can occur in these areas. The electrical box is a closed assembly and is operatively connected to an assembly by which air from areas outside the segments containing coolant is guided into the electrical box in such a way that a positive pressure is created in the electrical box to prevent combustible coolant from flowing into the electrical box.

An air conditioning system for a vehicle and a control method thereof may include a temperature detector; an air conditioning actuator including a cooling device and a blower; and a controller connected to the temperature detector and the air conditioning actuator and including: a load determination portion determining an air conditioning load based on factors including an internal temperature or an external temperature of a vehicle detected by the temperature detector; a storage portion storing a control map that controls the air conditioning actuator according to the air conditioning load; and an update portion updating a control value, pre-stored in the control map, of the air conditioning actuator for the air conditioning load to a demand value of a user when receiving the demand value of the user for the air conditioning actuator.

A refrigerant heat exchanger including a first group of heat exchange tubes on a first side of a core defining a first zone. A second group of heat exchange tubes on a second side of the core define a second zone. An inlet tank is at the inlet end of the core. An inlet port of the inlet tank is opposite to, or generally opposite to, an interface between the first zone and the second zone. A first outlet tank is at the outlet end of the core opposite to the first zone. A first outlet port of the first outlet tank is at an outer end of the first outlet tank. A second outlet tank is at the outlet end of the core opposite to the second zone. A second outlet port of the second outlet tank is at an outer end of the second outlet tank.

An air conditioning system provides inside air conditioning and performs the function of cleaning the inside air, so that the inside air is maintained to be pleasant. The air cleaning time of cleaning the inside air is decreased, so the possibility of moisture generated on an inside window due to the air cleaning is reduced.