An air-handling system for a heating, ventilation, and air conditioning system of a passenger vehicle is provided that includes a heated air conduit configured to receive a portion of a heated air flow from a heat exchanger in a conditioning section and directly deliver the portion of the heated air flow to a vent in the passenger vehicle. The portion of the heated air flow is separate from an unconditioned air flow, a conditioned air flow, and a remainder of the heated air flow, each of which run from the conditioning section to a common mixing section forming an output air flow. The delivery section distributes the output air flow to a plurality of conduits leading to a plurality of vents in the passenger vehicle.

An air-handling system for a motor vehicle includes a conditioning section having an evaporator core and a heater core. The conditioning section is separated into a primary zone and a secondary zone at a position disposed upstream of the heater core. The heater core extends partially into each of the primary zone and the secondary zone. A primary door assembly is disposed within the conditioning section at a position upstream of the heater core and a secondary door assembly is disposed within the secondary zone of the conditioning section at a position downstream of the primary door and upstream of the heater core.

A split heating, ventilation, and air-conditioning (HVAC) assembly for a motor vehicle is disclosed. The split HVAC includes a first sub-assembly comprising an evaporator and a first airflow space, a second sub-assembly comprising a second airflow space, a single sealing element located between a wall and one of the first sub-assembly or the second-sub-assembly, and a first interfacing element that directly connects the first sub-assembly and the second sub-assembly. The single sealing element and the first interfacing element prevent any airflow leakage from both the first sub-assembly and the second sub-assembly, and one of the first sub-assembly and the second sub-assembly extends partially into the other of the first sub-assembly and the second sub-assembly.

A heating, ventilation, and air conditioning (HVAC) system for a vehicle. The HVAC system includes an HVAC case. The HVAC case has a first inlet and a second inlet. The first inlet is in receipt of airflow from a front blower. The second inlet is in receipt of airflow from a rear blower. A front foot outlet directs airflow towards the feet of occupants at a front of the vehicle. A rear foot outlet directs airflow from the rear blower towards a rear of the vehicle. A rear-to-front airflow control door is movable to direct airflow generated by the rear blower and heated by a heater core through the rear foot outlet, through the front foot outlet, or simultaneously through both the rear foot outlet and the front foot outlet.

A motor vehicle air conditioning unit, having a housing with at least one air channel arranged therein and with at least one heat exchanger for conditioning the air in the at least one air channel, the housing having at least one first air outlet and one second air outlet, a first air outlet channel being assigned to the first air outlet and conducting air to the first air outlet, and a second air outlet channel being assigned to the second air outlet and conducting air to the second air outlet, a first vane valve and a second vane valve being provided. The first vane valve assigned to the first air outlet channel, and the second vane valve assigned to the second air outlet channel, the first vane valve and the second vane valve being rotatably fixedly connected to a shaft and being rotatable by an actuator driving the shaft.

A dual zone auxiliary climate control system for a vehicle includes an evaporator, a heater core having a first zone and a second zone, a first zone mode door downstream from the first zone of the heater core, a second zone mode door downstream from the second zone of the heater core and a blower. The blower forces air through the evaporator and the heater core toward the first zone mode door and the second zone mode door. A method of providing a dual zone auxiliary climate control system is also disclosed.

A vehicle seat includes an air mover within a seatback. First and second inlet channels extend from an occupant seatback surface and a seatback lower portion, respectively, to the air mover. The air mover includes first and second outlet channels, and the air mover selectively and alternatively moves air from at least one of the first inlet channel to one of the first and second outlet channels or the second inlet channel to the first outlet channel.

An air conditioning case configuring a vehicular air conditioning device is configured from first through third case sections capable of being divided in a width direction, the third case section in a center in the width direction and the first case section being connected via a first dividing section, and the third case section and the second case section being connected via a second dividing section. Moreover, the first and second dividing sections are formed in such a manner that their lower section sides facing a lower passage divided in a space between an evaporator and a heating unit are positioned on outer sides in the width direction with respect to an upper section of the air conditioning case provided with a vent blast port blasting air into a vehicle interior.

An air conditioning device for a vehicle includes a seat air conditioning unit that blows out air from a front side of a seat and an interior air conditioning unit that blows out air whose temperature has been adjusted by a cooling heat exchanger and a heating heat exchanger toward the vehicle interior space. The air conditioning device for a vehicle includes a first duct member for guiding the air flowing between the cooling heat exchanger and the heating heat exchanger in the interior air conditioning unit to the seat air conditioning unit. The air conditioning device for a vehicle further includes a second duct member for guiding the air higher in temperature than the air flowing between the cooling heat exchanger and the heating heat exchanger to the seat air conditioning unit.

Methods, systems, and apparatus for a control system that improves defroster performance in a vehicle by reducing rear heater core heat rejection to increase heat availability to the defroster. The control system includes a rear heating, ventilation and air conditioning (HVAC) unit configured that moves air into the vehicle. The control system 100 includes a memory for storing multiple blower maps. The control system includes an electronic control unit connected to the rear HVAC unit and memory. The electronic control unit is configured to determine a mode for a front HVAC. The electronic control unit is configured to obtain from the memory a blower map for the rear HVAC unit from the multiple blower maps based on the mode. The electronic control unit is configured to determine an airflow rate for the air based on the obtained blower map and control an amount of air outputted.