An electronic control unit (ECU) obtains outside air humidity information from a sensor disposed outside a vehicle compartment and inside air humidity information from a sensor inside the vehicle compartment. The ECU includes a humidity information obtainer obtaining the inside air humidity information, a humidity change calculator calculating the inside air humidity information as a difference between (i) a physical quantity correlated with humidity before a start of a dehumidification or a humidification and (ii) a physical quantity correlated with humidity after a switch-off of the dehumidification or the humidification, a soak time calculator calculating, based on the difference of the physical quantities, a soak time from the switch-off of the dehumidification or the humidification to a sensor-diag startable time at which a diagnosis of the outside air humidity sensor is startable, and a comparator comparing the outside air humidity information and the inside air humidity information after a lapse of the soak time from the switch-off of the dehumidification or the humidification.

An electronic control unit (ECU) obtains outside air humidity information from a sensor disposed outside a vehicle compartment and inside air humidity information from a sensor inside the vehicle compartment. The ECU includes a humidity information obtainer obtaining the inside air humidity information, a humidity change calculator calculating the inside air humidity information as a difference between (i) a physical quantity correlated with humidity before a start of a dehumidification or a humidification and (ii) a physical quantity correlated with humidity after a switch-off of the dehumidification or the humidification, a soak time calculator calculating, based on the difference of the physical quantities, a soak time from the switch-off of the dehumidification or the humidification to a sensor-diag startable time at which a diagnosis of the outside air humidity sensor is startable, and a comparator comparing the outside air humidity information and the inside air humidity information after a lapse of the soak time from the switch-off of the dehumidification or the humidification.

The invention relates to a nebulizer system (10) for a motor vehicle, having at least: a tank (12) for a liquid, a nebulizer chamber (14), said nebulizer chamber (14) having a nebulizer nozzle (22) provided with an acoustic wave output device configured such that said liquid from said tank (12) for the liquid forms a mist of droplets of said liquid, said mist being intended to pass into a passenger compartment of the motor vehicle, and a filter system (16) capable of filtering said liquid contained in said tank (12) for the liquid before it passes into said nebulizer chamber (14). According to the invention, said nebulizer system (10) has an input module (26) for air, said inlet module (26) for air having an air injection volute (30) capable of channelling the air in the direction of the internal volume of said nebulizer chamber (14). Application in particular to the automotive field.

An air-conditioning device includes: a compressor; an outdoor heat exchanger; an evaporating unit configured to evaporate refrigerant a heater unit configured to heat the air by using the heat of the refrigerant a liquid receiver arranged at the downstream side of the outdoor heat exchanger and a restrictor mechanism provided between the heater unit and the outdoor heat exchanger, wherein, in an operation state in which the flow of the refrigerant is restricted by the restrictor mechanism and heat is released in the heater unit, a first operation mode and a second operation mode are switched, the first operation mode being set such that the liquid-phase refrigerant is stored in the liquid receiver and the gaseous-phase refrigerant is guided to the compressor and the second operation mode being set such that the liquid-phase refrigerant stored in the liquid receiver is guided to the evaporating unit.

A dehumidifier unit for dehumidifying air in a container includes a Peltier element which is configured as a single-stage Peltier element and thermally connected to a cold side and to a warm side of the dehumidifier unit. The cold side is configured condense moisture of the air during operation of the dehumidifier unit. The Peltier element is clamped between the warm side and the cold side by a helical spring and a spring pin. A gland-type seal can be disposed on a side of the warm side in facing relation to the Peltier element. The gland-type seal includes a rubber bush which is received in a recess on the warm side and defined by an inner diameter which surrounds the clamping pin.

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.

A humidity control device includes an adsorber, a blower, and a mode switching unit configured to set a desorption mode in which moisture adsorbed by an adsorbent is desorbed to humidify air or an adsorption mode in which moisture is adsorbed by the adsorbent to dehumidify air. The adsorber has ventilation surfaces through which air flows in or out. The mode switching unit is configured to reverse an air flow direction in the adsorber such that one of the ventilation surfaces serving as an air inflow surface in the adsorption mode is used for an air outflow surface in the desorption mode and that the other of the ventilation surfaces serving as an air outflow surface in the adsorption mode becomes an air inflow surface in the desorption mode in a state where an air suction direction and an air blowout direction of the blower is maintained.

An apparatus for treating air includes a housing with an air inlet and an air outlet, the housing enclosing an air treatment zone and an ozone removal zone, wherein the ozone removal zone is positioned downstream of the air treatment zone with respect to a flow direction of the air being treated, an ultraviolet (UV) light source in the air treatment zone configured to generate ozone from the air, wherein the UV light from the UV light source and the ozone generated by the UV light source treat the air in the air treatment zone, catalyst in the ozone removal zone that removes at least a portion of the ozone generated by the UV light source, and an air mover positioned near the air outlet configured to draw the air through the air inlet into the air treatment zone from outside the housing.

A blower case for a heating, ventilation, and air conditioning (HVAC) system. The blower case includes an inlet for airflow entering the blower case. Also included is a dehumidifier, which is movable between a first position and a second position. In the first position the dehumidifier is in a path of airflow entering the blower case through the inlet. In the second position the dehumidifier is not in the path of airflow entering the blower case through the inlet.

A humidifying device has an adsorption module and a blower. The adsorption module has the adsorbent. The adsorption module is configured to adsorb the water from the air passing through the adsorption module to the adsorbent and is configured to desorb the water from the adsorbent to air passing through the adsorption module. The blower blows the air to the adsorption module. The blower, in an adsorption operation in which the adsorbent adsorbs the water from air, draws the air from a roof space and blows the air to the adsorption module whereby the adsorption module adsorbs the water from the air. The roof space is defined between a vehicle ceiling panel and a ceiling interior member.