A vehicle air-conditioning system includes a cold-air circulation section in which indoor air of a vehicle is cooled via heat exchange with a refrigerant and is again supplied to a passenger compartment, a hot-air circulation section in which the indoor air is raised in temperature via heat exchange and is then again supplied to the passenger compartment, a purification circulation section in which the indoor air is introduced and purified and is then again supplied to the passenger compartment, and a refrigerant circulation section in which the refrigerant circulates to undergo heat exchange with the cold-air circulation section and the hot-air circulation section. The vehicle air-conditioning system separates an indoor air flow-path from an outdoor air flow-path to block outdoor air when performing air conditioning, and performs air conditioning of the passenger compartment using only the indoor air without entry of the outdoor air.

Methods and systems are provided for improving the operation of a start/stop vehicle having an FEAD-driven AC compressor. During an engine idle-stop, fragrance is dispensed into a vehicle cabin via a fragrance dispensing device integrated with a vent of a vehicle AC unit. The dispensed fragrance masks must smells attributed to an evaporator when the engine is shut-down, thereby extending the duration of idle-stop.

An air sanitizing apparatus for a vehicle comprising: an ozone generator; a negative ion generator; and an ultraviolet radiation source. The air sanitizing apparatus further includes a rotating feature and a motor operably connected to the rotating feature, the rotating feature configured to move the air sanitizing apparatus along a track system. The air sanitizing apparatus can includes a first end portion; a second end portion; a middle portion disposed between the first end portion and the second end portion, the middle portion rotatable relative to the first end portion and the second end portion about an axis that extends through both the first end portion and the second end portion. The ozone generator, the negative ion generator, and the ultraviolet radiation source are all disposed at the middle portion. The air sanitizing apparatus is disposed in an interior of a vehicle below but adjacent to a ceiling,

Methods and systems are provided for improving the operation of a start/stop vehicle having an FEAD-driven AC compressor. During an engine idle-stop, fragrance is dispensed into a vehicle cabin via a fragrance dispensing device integrated with a vent of a vehicle AC unit. The dispensed fragrance masks must smells attributed to an evaporator when the engine is shut-down, thereby extending the duration of idle-stop.

An air fragrance diffuser system for use in an automobile includes a battery and an electronic control system communicably coupled to a wireless transceiver associated with a user. The diffuser system includes an air pump for generating a pressurized air. The diffuser system further includes an atomizer device pneumatically coupled to the air pump for receiving the pressurized air to convert fragrance oil stored in the atomizer device into fragrance mist using the pressurized air based on a jet nebulization process. In an embodiment, the diffuser system further includes a transmission system coupled to the atomizer device for receiving the fragrance mist, and for providing the fragrance mist into a passenger compartment of the automobile. In another embodiment, the transmission system provides the mixture into the passenger compartment using existing vents of a Heating, Ventilation, and Air Conditioning (HVAC) system of the automobile.

An air sanitizing apparatus for a vehicle comprising: an ozone generator; a negative ion generator; and an ultraviolet radiation source. The air sanitizing apparatus further includes a rotating feature and a motor operably connected to the rotating feature, the rotating feature configured to move the air sanitizing apparatus along a track system. The air sanitizing apparatus can includes a first end portion; a second end portion; a middle portion disposed between the first end portion and the second end portion, the middle portion rotatable relative to the first end portion and the second end portion about an axis that extends through both the first end portion and the second end portion. The ozone generator, the negative ion generator, and the ultraviolet radiation source are all disposed at the middle portion. The air sanitizing apparatus is disposed in an interior of a vehicle below but adjacent to a ceiling.

A vehicle deodorizer assembly includes a reservoir which contains a chemical fragrance and the reservoir is integrated into a vehicle. A pump is integrated into the vehicle and the pump is in fluid communication with the reservoir thereby facilitating the pump to urge the chemical fragrance outward from the reservoir. A pair of nozzles is each integrated into the cabin of the vehicle to release the chemical fragrance into the cabin wherein the nozzles are configured to enhance the odor of the cabin. An actuate button is disposed in the cabin of the vehicle and the actuate button is in communication with the pump. Furthermore, the actuate button turns on the pump when the actuate button is depressed.

An air freshener for a vehicle includes a housing having an air inlet and an air outlet at both ends thereof. A perfume container is provided inside the housing, in which a plurality of aromatics having different physical states are laminated. An aromatics laminated at an uppermost layer is evaporated by air passing through an interior of the housing.

A scent diffusing system for a vehicle includes a heating, ventilation, and air conditioning (HVAC) system is in fluid communication with a passenger compartment. A duct assembly extends between the HVAC system and the passenger compartment. The duct assembly includes a duct including a receiving extension defining a receiving cavity. The receiving extension defines locating tracks. A holder assembly is slidably received within the locating tracks. An interior of the holder assembly is in fluid communication with an interior of the duct via openings defined by the holder assembly. A scented pad is disposed within the interior of the holder assembly. A controller is configured to activate the HVAC system to direct air through the duct, through the interior of the holder assembly, and into the passenger compartment to diffuse a scent within the passenger compartment.

A vehicle air-conditioning system includes a cold-air circulation section in which indoor air of a vehicle is cooled via heat exchange with a refrigerant and is again supplied to a passenger compartment, a hot-air circulation section in which the indoor air is raised in temperature via heat exchange and is then again supplied to the passenger compartment, a purification circulation section in which the indoor air is introduced and purified and is then again supplied to the passenger compartment, and a refrigerant circulation section in which the refrigerant circulates to undergo heat exchange with the cold-air circulation section and the hot-air circulation section. The vehicle air-conditioning system separates an indoor air flow-path from an outdoor air flow-path to block outdoor air when performing air conditioning, and performs air conditioning of the passenger compartment using only the indoor air without entry of the outdoor air.