A method of notifying in-car air pollution is disclosed and includes: a) providing an in-car air pollution detection system including at least one in-car gas detection module, at least one out-car gas detection module, an in-car air conditioner including an audio element and a display element, and a plurality of filtering and purification components disposed in the interior space of the car for filtering and purifying the air pollution source in the interior space of the car; b) notifying an initial value of the in-car gas detection datum; c) notifying a post-purification value of the in-car gas detection datum, wherein the post-purification value of the in-car gas detection datum is broadcasted by the audio element and/or displayed by the display element of the in-car air conditioner; and d) intelligently selecting an external gas to be introduced or not to be introduced into the interior space of the car.

A method for controlling a vehicle thermal management system includes determining an outdoor air fraction (OAF) based on a temperature of a battery when the outdoor air intake into a passenger compartment is required, wherein the OAF increases as the temperature of the battery increases, and the OAF decreases as the temperature of the battery decreases.

A method for controlling an air conditioning device of an electrified vehicle includes determining, by a controller, whether an active air flap is closed in response to an operation signal of the active air flap of the electrified vehicle, when an electric compressor provided in an air conditioner of the air conditioning device of the electrified vehicle is operated, when the active air flap is closed, controlling, by the controller, opening of an intake door provided in the air conditioning device to increase an amount of internal circulating air of the air conditioner, and when the amount of the internal circulating air of the air conditioner is increased, decreasing, by the controller, a speed of the electric compressor.

Provided is a vehicle including a curtain device; an inputter; a communicator configured to recognize current position information; and a processor configured to determine whether a current position is a position before entering a tunnel based on the current position information and map information, and upon determining that the current position is the position before entering the tunnel, control to open the curtain device, and configured to, in response to a selection command of an automatic light on/off mode for automatically turning on a lamp being received through the inputter, change an opening/closing mode of the curtain device to an automatic opening/closing mode, and upon the lamp being in an on-state, control opening of the curtain device.

A vehicular air conditioning system includes: a heat pump side refrigerant circulation line including a compressor, a water-cooled heat exchanger, a heat pump mode expansion valve, an air-cooled heat exchanger, an air conditioner mode expansion valve and an evaporator, the heat pump side refrigerant circulation line configured to generate cold energy in the evaporator in an air conditioner mode and to generate heat in the water-cooled heat exchanger in a heat pump mode, the air-cooled heat exchanger configured to allow a refrigerant to exchange heat with an ambient air in the air conditioner mode and the heat pump mode; and a heat exchange air switching part configured to switch the type of the air heat-exchanged in the air-cooled heat exchanger depending on the air conditioner mode or the heat pump mode.

Embodiments of the present invention are directed to a method and system for preventing ingestion of ambient air contaminated with possibly harmful, toxic, or flammable battery gases into a passenger compartment of a vehicle in the event of a battery failure. If an abnormal state is detected in a battery pack of the vehicle, the vehicle automatically switches the HVAC system to air recirculation mode, thereby preventing any toxic gas emitted from the battery pack from entering the passenger compartment.

System, methods, and other embodiments described herein relate to assisting in closing a door of a vehicle by leveraging a Heating, Ventilation and Air-conditioning (HVAC) system in the vehicle. In one embodiment, a method includes detecting a position of at least one vehicle door, and when the position of the at least one vehicle door is an open position, determining whether to activate the HVAC system to reduce air pressure in a cabin of the vehicle. The method includes, in response to determining to activate the HVAC system, pumping air out of the cabin such that at least some of any increased air pressure caused by a vehicle door closure is removed from the cabin. The method includes, when the position of the at least one vehicle door has changed from the open position to a closed position, deactivating the HVAC system to stop pumping air out from the cabin.

A vehicular air-conditioning unit has an air-conditioning case, a first ventilation passage and a second ventilation passage, a first communication-ventilation passage defined in the air-conditioning case, the first communication-ventilation passage through which one end of the first ventilation passage communicates with one end of the second ventilation passage, a first heat exchanger that heats or cools air flowing in the first ventilation passage, a second heat exchanger that heats or cools air flowing in the second ventilation passage, and a blowing mode switching device setting any one of blowing modes. The blowing modes include (i) a first blowing mode in which air is blown into a vehicle compartment after flowing through the first ventilation passage and in which air is blown into the vehicle compartment after flowing through the second ventilation passage and (ii) a second blowing mode in which air flows into the second ventilation passage through the first communication-ventilation passage after flowing through the first ventilation passage and is blown into the vehicle compartment.

A vehicle system includes: a heating, ventilation, and air conditioning (HVAC) system including: a passenger cabin air filter; and a blower configured to draw air through the passenger cabin air filter and blow air into a passenger cabin of a vehicle; an olfaction sensor configured to measure an amount of a chemical in air in a duct of the HVAC system downstream of the passenger cabin air filter; and a filter module configured to determine and indicate whether to replace the passenger cabin air filter based on the amount of the chemical in the air measured by the olfaction sensor.

A Heating, Ventilation, and Air-Conditioning unit for a vehicle is provided. The HVAC unit comprises a housing, a first inlet, a second inlet first flap, and a third door. The first flap having a first door and a second door, attached to the first inlet. The first door is angularly movable with respect to the second door and adapted to move between a first position and a second position to open and close the first inlet. Further, the second door is angularly movable with respect to the first door and adapted to move between the first position and a third position to open and close air passage between the first inlet and the second inlet. The third door rotatably connected in the second inlet, and is movable between a closed position where the second inlet is closed and at least partially open position where the second inlet is partially open.