Method for operating cabin air filtration system of vehicle, electronic control unit and cabin air filtration system
AssigneeMann+Hummel GmbH
InventorsBernd BAUER, Maximilian BAUCH, Frank PFLÜGER
Life of this patent
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Abstract
A method for operating a cabin air filtration system of a vehicle includes retrieving, from a storage of a filter element, data comprising information characterizing the filter element, providing system information for the filter element identified by the retrieved data, retrieving current air property data referring to an air property inside and/or outside a cabin, and determining a current air quality information about a current air quality inside the cabin, from the system information for a current magnitude of an air flow, a current recirculation ratio of fresh air and recirculated air and the current air property data.
Claims20
A method for operating a cabin air filtration system of a vehicle,
- wherein the cabin air filtration system comprises an air filter device for filtering an air flow into a cabin, the air flow being composed of fresh air from outside and recirculated air from inside the cabin,
- wherein a magnitude of the air flow through the air filter device is adjustable,
- wherein a ratio of the fresh air and the recirculated air is adjustable,
- wherein the air filter device comprises at least one filter element comprising a storage, and
- wherein the method comprises:
- retrieving, from the storage of the filter element, data comprising information characterizing the filter element;
- providing system information for the filter element identified by the retrieved data, the system information linking:
- at least one characteristic of the filter element comprising information on a filtration efficiency of the filter element;
- the magnitude of the air flow through the air filter device;
- the ratio of the fresh air and the recirculated air;
- air property data referring to an air property inside and/or outside the cabin;
- and
- an air quality information characterizing an air quality inside the cabin;
- retrieving current air property data referring to the air property inside and/or outside the cabin;
- and
- determining a current air quality information about a current air quality inside the cabin, from the system information for a current magnitude of the air flow, a current recirculation ratio of the fresh air and the recirculated air and the current air property data.
An electronic control unit for a cabin air filtration system of a vehicle,
- wherein the cabin air filtration system comprises an air filter device for filtering an air flow into a cabin, the air flow being composed of fresh air from outside and recirculated air from inside the cabin,
- wherein a magnitude of the air flow through the air filter device is adjustable,
- wherein a ratio of the fresh air and the recirculated air is adjustable,
- wherein the air filter device comprises at least one filter element comprising a storage,
- wherein the electronic control unit is configured to:
- retrieve current air property data referring to an air property inside and/or outside the cabin;
- and
- determine a current air quality information about a current air quality inside the cabin, from system information for a current magnitude of the air flow, a current recirculation ratio of the fresh air and the recirculated air and the current air property data, the system information linking:
- at least one characteristic of the filter element comprising information on a filtration efficiency of the filter element;
- the magnitude of the air flow through the air filter device;
- the ratio of the fresh air and the recirculated air;
- air property data referring to an air property inside and/or outside the cabin;
- and
- an air quality information characterizing an air quality inside the cabin.
Dependencies are inferred from the claim text.