Abstract: A method of controlling air recirculation via a continuous-feedback loop control system that adjusts cabin air recirculation in vehicles based on a number of different sensor inputs. The system uses a mass balance on the interior passenger compartment of the vehicle to sense and adjust the amount of dissolved water vapor in the cabin for liquid management.

Abstract: A heating and ventilation system that removes water vapor from recirculating air from a passenger compartment is provided. The system includes a housing that includes an air inlet and an air outlet, the air inlet comprising a first inlet that is aligned to receive air flowing from a passenger compartment of a vehicle that includes the housing, and a second inlet that is configured to receive air from outside of a vehicle. A housing supports a semipermeable membrane that is aligned with the first inlet such that air that flows through the first inlet flows through the semipermeable membrane before flowing to the air outlet, and wherein air flowing through the second inlet does not flow through the semipermeable membrane. A first port that is fluidly connected to the semipermeable membrane. The housing includes a valve disposed to control the air flowing therein.

Abstract: A heating, ventilation, and air conditioning (HVAC) module includes an air inlet, a first valve, a second valve, and a third valve. The air inlet includes a first inlet portion that receives a first input air and a second inlet portion to receive a second input air. The blower is in communication with the air inlet. The blower includes a first airflow section and a second airflow section. The first valve is disposed in the inlet and controls flow of the first input air and the second input air through the first airflow section. The second valve is disposed adjacent to the first valve and is configured to control flow of the first input air and the second input air through the second airflow section. The third valve is disposed in the second valve and selectively restricts leakage of the first input air into the first airflow section.

Abstract: A valve assembly for a heating, ventilation, and air conditioning (HVAC) module may include a valve housing, an adjustable valve, an adjustable compensation door, and an actuator. The valve housing may include an inlet cowl. The valve may be disposed in the valve housing. The compensation door may be disposed in the inlet cowl upstream of the valve. The actuator may be connected to the compensation door. The actuator may be in fluid communication with the inlet cowl and may adjust the compensation door based on an air pressure in the inlet cowl.

Abstract: An HVAC system that optimized for minimizing the amount of electrical power used during operation at various levels producing cold air or warm air is provided. The system includes an air inlet, a scroll, an air conditioning module, and an air delivery system for various locations within a vehicle that includes the HVAC system.

Abstract: A heating and ventilation system is provided. The system includes a housing with air inlet that receives air from a fan, which takes an intake from either or both of fresh air from outside of the vehicle and the passenger compartment. The housing includes a semipermeable membrane that is aligned to receive air flowing from the fan. A first port receives water vapor that is removed from the air that flows into the semipermeable membrane. The housing receives an evaporator of a heat pump system.

Abstract: An HVAC system for a vehicle is provided, that includes a system to use passenger compartment heat for heating air within an HVAC system. The system includes a first air inlet configured, when installed within a vehicle, to receive air that flows therein from outside of the vehicle, and a second air inlet different from the first air inlet, the second air inlet configured, when installed within the vehicle, to receive air that flows therein from within a passenger compartment of the vehicle. A heat exchanger disposed to receive air from the first air inlet and the second air inlet via different flow paths simultaneously across different portions of the heat exchanger, and in some embodiments in substantially opposite directions.

Abstract: An HVAC system for a vehicle is provided, that includes a system to use passenger compartment heat for heating air within an HVAC system. The system includes a first air inlet configured, when installed within a vehicle, to receive air that flows therein from outside of the vehicle, and a second air inlet different from the first air inlet, the second air inlet configured, when installed within the vehicle, to receive air that flows therein from within a passenger compartment of the vehicle. A heat exchanger disposed to receive air from the first air inlet and the second air inlet via different flow paths simultaneously across different portions of the heat exchanger, and in some embodiments in substantially opposite directions.

Abstract: A method of controlling air recirculation via a continuous-feedback loop control system that adjusts cabin air recirculation in vehicles based on a number of different sensor inputs. The system uses a mass balance on the interior passenger compartment of the vehicle to monitor and reduce the amount of dissolved water vapor in the cabin, leading to reduced risk of condensation while simultaneously improving battery consumption.

Abstract: A blower assembly for a heating, ventilation, and air conditioning (HVAC) module may include a blower and an air funnel. The blower may include a blower wheel. The air funnel may include a base portion and a circumferential wall connected to and projecting from the base portion. When viewed in a first direction parallel to a blower axis, a first flow area may be defined by and between a first side of the base portion and an outer perimeter of the blower wheel. When viewed in the first direction, a second flow area may also be defined by and between a second side of the base portion and the outer perimeter of the blower wheel.

Abstract: A valve assembly for a heating, ventilation, and air conditioning (HVAC) module may include a valve housing and a plurality of adjustable valves. The valve housing may define an internal space. The valve housing may include a first inlet via which a first input air is flowable into a first intake region of the internal space, a second inlet via which a second input air is flowable into a second intake region of the internal space, and a plurality of airflow openings. The adjustable valves may be disposed in the valve housing between the two intake regions. A first valve may be adjustable about a first axis to selectively open and close the first airflow opening with respect to the intake regions. A second valve may be adjustable about a second axis to selectively open and close the second airflow opening with respect to the intake regions.

Abstract: An air mixing damper system is provided. The system includes a first rotatable door that rotates about a first shaft that extends along a first axis, and a second rotatable door that rotates about a second shaft, the second shaft disposed along a second axis, the second axis is collinear with the first axis. The first door is rotatable about the first axis and the second door is rotatable about the second axis. A first actuator operatively engaged with the first shaft. A second actuator operatively engaged with the second shaft, wherein the first and second doors are each capable of rotating independently of the other of the first and second doors. An air circulation assembly with the damper system is provided.

Abstract: A heating, ventilation, and air conditioning (HVAC) module includes an air inlet, a first valve, a second valve, and a third valve. The air inlet includes a first inlet portion that receives a first input air and a second inlet portion to receive a second input air. The blower is in communication with the air inlet. The blower includes a first airflow section and a second airflow section. The first valve is disposed in the inlet and controls flow of the first input air and the second input air through the first airflow section. The second valve is disposed adjacent to the first valve and is configured to control flow of the first input air and the second input air through the second airflow section. The third valve is disposed in the second valve and selectively restricts leakage of the first input air into the first airflow section.