Abstract: A method for determining a vehicle heating, ventilation, and air conditioning (HVAC) passenger cabin air filter filtration performance includes determining a vehicle-exterior atmospheric particulate contaminant concentration, a passenger cabin air filter efficiency, and an HVAC airflow rate. The passenger cabin particulate contaminant concentration is calculated from the determined atmospheric particulate contaminant concentration, passenger cabin air filter efficiency, and HVAC airflow rate.

Abstract: A window defogging system for a motor vehicle includes an air source and a first air diffuser in communication with the air source. The first air diffuser includes a first plurality of air guides increasing in cross sectional area in proportion to increasing distance away from the air source. A related method of defogging motor vehicle windows is also disclosed.

Abstract: A vehicle ventilating/cooling system may include at least one sun-load sensor arranged within the vehicle, and a controller configured to receive a sun-load signal indicating a sun-load level from the sensor and programmed to instruct at least one cooling component to conduct a purge of vehicle cabin air in response to the sun-load level exceeding a sun-load threshold.

Abstract: An air quality monitoring system for a motor vehicle includes a plurality of air sampling points on the motor vehicle, a single air quality sensor and a conduit system connecting the plurality of air sampling points with the single air quality sensor.

Abstract: A method for determining a vehicle heating, ventilation, and air conditioning (HVAC) passenger cabin air filter filtration performance includes determining a vehicle-exterior atmospheric particulate contaminant concentration, a passenger cabin air filter efficiency, and an HVAC airflow rate. The passenger cabin particulate contaminant concentration is calculated from the determined atmospheric particulate contaminant concentration, passenger cabin air filter efficiency, and HVAC airflow rate.

Abstract: A combining air-temperature monitor includes a faceted central shaft, a plurality of air-foil rings positioned about the faceted central shaft and a mixing zone proximate the faceted central shaft. The air-foil rings and the faceted central shaft cooperate to direct a plurality of air streams into the mixing zone. A temperature sensor is disposed within the mixing zone. The temperature sensor selectively measures a combined temperature of the plurality of air streams within the mixing zone. The faceted central shaft is adapted for insertion into an air-handling duct, wherein the faceted central shaft is free of a predetermined rotational orientation within the air handling duct.

Abstract: A duct for a heating/ventilation/air conditioning system of a vehicle includes a first end and a second end spaced a distance from the first end. An orifice extends between the first end and the second end. A semi-circular surface is disposed at the second end. The semi-circular surface extends about a radius having the same length as the distance between the first and second ends.

Abstract: A duct for a heating/ventilation/air conditioning system of a vehicle includes a first end and a second end spaced a distance from the first end. An orifice extends between the first end and the second end. A semi-circular surface is disposed at the second end. The semi-circular surface extends about a radius having the same length as the distance between the first and second ends.

Abstract: A combining air-temperature monitor includes a faceted central shaft, a plurality of air-foil rings positioned about the faceted central shaft and a mixing zone proximate the faceted central shaft. The air-foil rings and the faceted central shaft cooperate to direct a plurality of air streams into the mixing zone. A temperature sensor is disposed within the mixing zone. The temperature sensor selectively measures a combined temperature of the plurality of air streams within the mixing zone. The faceted central shaft is adapted for insertion into an air-handling duct, wherein the faceted central shaft is free of a predetermined rotational orientation within the air handling duct.

Abstract: An air conditioning condensate drain line assembly. The assembly may include a paddle wheel that is rotatably disposed in a drain hole of a drain housing. The paddle wheel may inhibit contaminants from entering the drain tube.

Abstract: A duct assembly including a first duct and a second duct that are connected by a receptacle and a fitting that are moved in a transverse direction to assemble the first duct to the second duct. The receptacle defines a slot that includes an inner wall and an outer wall. The inner and outer wall define a fitting insertion opening on one lateral side and a fitting seat on the opposite lateral side. A seal is provided on a face wall of the fitting. Triangular side walls extend between the inner and outer walls. A locking tab on a triangular side wall is received within a tab receiver on the outer wall of the fitting.

Abstract: A climate control system for a vehicle includes an air conditioner positioned in a rear of the vehicle. A roof panel includes a moonroof opening bounded on at least one side by a moonroof rail. The moonroof rail generally defines an air supply duct between a headliner and the roof panel. The air supply duct is in communication with the air conditioner. A plurality of vents are operably connected to the moonroof rail and relay conditioned air from the air supply duct to an interior of the vehicle.

Abstract: The present invention generally relates to an HVAC door and method of use for an HVAC system in a vehicle, and more specifically to an airflow distribution door for use in a vehicle climate control system configured to suppress flutter of the door.