An air-conditioning apparatus for an electric vehicle and a method of controlling the same, may include a heat exchanger performing heat exchange between a first fluid and a second fluid while the first fluid and the second fluid flow separately from each other therethrough; a heat source connected to the heat exchanger through a line through which the second fluid flows to allow the second fluid to circulate between the heat exchanger and the heat source, and heating or cooling the second fluid; a circulator imparting a circulation force to the second fluid such that the second fluid circulates between the heat exchanger and the heat source; and a controller determining a required flow rate of the second fluid by use of a flow rate of the first fluid flowing through the heat exchanger and controlling the circulator on the basis of the required flow rate of the second fluid.

A PTC heater includes PTC heater parts in which heater rods and radiation fins are alternately arranged. A frame is formed along a circumference to support the PTC heater parts. IGBT elements are installed on the frame and selectively apply a battery current to each of the heater rods to adjust the heat generation amount of the heater rods. A control module is installed on the frame and controls the IGBT elements to adjust the heat generation amount of the heater rods according to a target temperature value. A heat sink is installed on the frame, is connected with the IGBT elements for heat-exchange, is formed to pass the PTC heater parts in the horizontal direction and radiate heat of the IGBT elements through the flowing air inside the air conditioning case.

An object of the present invention is to provide a vehicular air conditioning apparatus capable of varying the temperature of air that has passed through a heater core in the up-down direction of the heater core while achieving downsizing. The vehicular air conditioning apparatus includes an electric heater (43) that is provided in a flow channel defined by a housing on the downstream side of an evaporator, that includes heater circuits (48, 49), and that configures a heater core (17) that heats air cooled by the evaporator, and a control device (25) that separately controls the heater circuits (48, 49). The heater circuits (48, 49) are arranged in the up-down direction of the heater core (17).

A target thermal sensation setter sets target thermal sensations for a finite number of parts into which the occupant is virtually divided. A cabin temperature controller individually controls a cabin air-conditioning unit and an auxiliary heater so that the thermal sensations of the respective parts of the occupant estimated by an occupant thermal sensation estimator fall within a range of the target thermal sensations.

An air conditioner for a vehicle including an air-conditioning case divided into a plurality of air passageways by a separation wall. A heating heat exchanger is disposed inside the air-conditioning case and exchanges heat with air to heat the interior of the vehicle. A perforated member is disposed at a downstream side of the heating heat exchanger and has a plurality of perforated holes through which the air passing the heating heat exchanger passes, and a partition wall is disposed between the heating heat exchanger and the perforated member to divide the air passageway of the air-conditioning case into a plurality of air passageways, wherein the partition wall is formed integrally with the perforated member.

An infrared (IR) heating module for a vehicle having a passenger cabin including at least one IR panel, a controller coupled to the at least one IR panel for controlling operation of the IR heating module, and a power supply coupled to the controller for supplying power to the IR heating module, where the at least one IR panel is adapted and configured to be installed in a roof within the passenger cabin of the vehicle. The IR heating module operates by detecting a temperature within a cabin of the vehicle based on an output of a thermostat within the vehicle, receiving a signal from the controller relating to the temperature detected, and initiating an operation of the at least one IR panel based on the received signal, where the at least one IR panel is installed within the roof of the vehicle.

Heat flow management device for motor vehicles has a refrigerant circulation, a power train coolant circulation and a heating line heat carrier circulation. The refrigerant circulation includes a compressor, an indirect condenser, an expansion element, an ambient heat exchanger, an evaporator and a chiller. The power train coolant circulation includes a coolant pump, the chiller, an electric motor heat exchanger and a power train coolant radiator, wherein the heating line heat carrier circulation comprises a coolant pump, the indirect condenser and a heating heat exchanger, wherein the refrigerant circulation and the power train coolant circulation are directly thermally coupled with one another across the chiller. Refrigerant circulation and heating line heat carrier circulation are directly thermally coupled with one another across the indirect condenser. Power train coolant circulation and the heating line heat carrier circulation are only indirectly thermally coupled with one another across the refrigerant circulation.

An HVAC system for a vehicle includes an evaporator including a lower end and an opposing upper end, a blower downstream from the evaporator, and a heater downstream from the evaporator, the heater including a lower end that is disposed above the lower end of the evaporator.

A method of controlling an air conditioning system for a vehicle is provided. The method includes detecting a cooling mode while the vehicle is being driven and comparing a vent discharge temperature of air with a cooling target temperature set by a user. When the vent discharge temperature is greater than the cooling target temperature the compressor RPM is determined and air is introduced into the vehicle without passing through the interior heat exchanger and the electric heater. When the vent discharge temperature is less than the cooling target temperature, the compressor RPM is determined and a door in the system is opened to guide the air through the interior heat exchanger to heat the air is heated and then the vent discharge temperature is compared with the cooling target temperature again, and the electric heater is operated.

A heating, ventilation, and air conditioning (HVAC) apparatus for an automotive vehicle may include an internal volume divided into upper and lower regions, and configured for blowing the air to a defrost vent and a front seat face vent is made through the upper region, and blowing the air to a front seat foot vent and a rear seat vent is made through the lower region.