Systems and methods are provided for predicting failure of an air filter within an HVAC installation. Also provided are methods for calibrating the systems described. The system provided typically includes air filters and vents, and a processor at an application server configured to implement methods described. Each vent may include various sensors, such as a temperature sensor or a sensor for evaluating indoor air quality. The method may receive information about a total volume of air pumped by an HVAC system over time, determine the volumetric quantity of air passing through a particular filter, and compare that quantity of air to a threshold amount representing the lifetime, or some percentage of the lifetime of the filter. Where the system includes multiple vents and multiple filters, the system may implement a model for calculating the volumetric quantity of air associated with each individual filter.

An air filter for a ventilation device of a motor vehicle is disclosed. The air filter has a planar extension along which the air filter is able to be inserted into a flow area of the ventilation device transversely relative to a flow direction and has a filter medium arranged along its planar extension. The filter medium is bordered at least in certain regions by at least one frame wall. The frame wall has at least one section which is able to be brought into engagement with guide elements of the ventilation device in order to guide the air filter during insertion into the flow area. The section is a notch on an edge of the frame wall and is formed with an undercut relative to the edge such that the air filter is able to be braced transversely relative to the insertion direction during insertion in two directions.

The invention is about a vehicle air conditioning system wherein an air stream can flow axially along a stream direction. The system has a filter held in a compartment in a substantially transversal plane. The filter compartment has an inlet opening and an outlet opening and is delimited by peripheral walls comprising a back wall, two lateral walls and a front wall. The filter compartment is provided with a removable service drawer comprising a front panel, and an adjacent floor portion extending backwards from the front panel. When the service drawer is closed the front panel is adjacent the front wall and, when opening the service drawer, a service opening opens in place of the front panel and in place of the floor portion leaving for the filter a passage allowing removal of the filter along a removal direction inclined relative to the transversal plane.

A filter insertion opening into which a filter is inserted is formed in an indoor-air/outdoor-air switching unit, which constitutes an air conditioning device for a vehicle, and a guide section for guiding the filter downstream in the insertion direction is provided on the inner wall surface of a casing so as to face the filter insertion opening. The guide section has: a first lower guide facing the filter insertion opening and tilted upward; and a second lower guide formed downstream of the first lower guide in the insertion direction and tilted downward. When inserting the filter from the filter insertion opening, the filter is guided along the first lower guide and therefore is inserted while being tilted such that the end of the filter, which is located downstream in the insertion direction, is lifted up. Consequently, the filter can be inserted without contact with the vehicle body-side structure.

A ventilation unit for a vehicle air-conditioning device has a filter element, a filter frame, a wall portion, a blower case, and a blower. The filter element is disposed in an air inlet of the vehicle air-conditioning device. The filter frame houses the filter element. The wall portion is provided in a standing position around the filter element housed in the filter frame. The blower case is attached to the filter frame. The filter frame is coupled with the blower case to be drawn out from the blower case together with the filter element in a drawing direction parallel to an upper surface of the filter element. The wall portion is disposed at a location corresponding to at least a rear side of two sides facing each other in the drawing direction and protrudes upward over the upper surface of the filter element.

The invention relates to an air intake device (16) of a vehicle-interior ventilation system (10), in particular of a vehicle air conditioner, having a filter chamber (18) which is arranged upstream of a fan blower (34), and a filter (32) which is arranged in the filter chamber (18), the filter chamber (18) having a fresh air inlet (22) upstream of the filter (32) and a filter maintenance opening (40) which makes it possible to install and dismantle the filter (32). Furthermore, the air intake device (16) comprises an air-guiding component (24) which can be dismantled and has a fresh air intake opening (28), which air-guiding component (24) forms a fresh air duct (26) which extends from the fresh air intake opening (28) to the fresh air inlet (22) of the filter chamber (18), and which air-guiding component (24) closes the filter maintenance opening (40) by way of a cover section (42).

The invention relates to a heating, ventilation and/or air conditioning device (10) for a motor vehicle, comprising a housing (12) defining an air duct (11) for the passage of an airflow comprisingan inlet module (8), comprising at least one air inlet (15, 16), an air filter (70) being arranged within the inlet module (8), anda distribution module (9) comprising at least one air outlet (27, 29, 30), the inlet module (8) and the distribution module (9) being detachably assembled to one another; according to the invention, the inlet module (8) is configured to be arranged in a first area of the vehicle, and the distribution module (9) is configured to be arranged in a second area of the vehicle, the air filter (70) being able to be removed from the second area of the vehicle. The invention also relates to a motor vehicle comprising such a device.

Proposed is a vehicle air conditioner, which performs cooling and heating by supplying cold air and hot air in an interior of the vehicle. The vehicle air conditioner includes an intake unit installed at an engine room and configured to suction and blows internal and external air to the interior, a heat exchanger unit configured to cool or heat and supply air blown from the intake unit, a case cover installed on an outer surface of the intake unit to cover the intake unit, and a case soundproofing member installed between an intake case of the intake unit and the case cover and configured to block noise that is transmitted to the intake case from the outside of the case cover.

A processing system including at least one processor may obtain utilization data of an air filter in an air filtration system and environmental data for at least one location associated with the air filtration system. The processing system may then determine at least one filter changing action based upon at least the utilization data and the environmental data and transmit at least one instruction to implement the at least one filter changing action.

A system (10) for treating the air in the cabin of a vehicle includes a casing, an air conditioning apparatus, a filtering device (16) an RFID tag (28) containing identification information about the filtering device (16). An RFID reader (30) co-operates with the RFID tag (28) to read the identification information. A control unit (32) is connected to the RFID reader (30) and configured for receiving the identification information and for executing predefined operations as a function of the identification information.