Methods and systems for monitoring loading of an air filter
First Claim
1. A method, comprising:
- receiving upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter;
receiving downstream air pressure data indicative of an air pressure on a downstream side of the air filter;
receiving downstream temperature data indicative of a temperature on the downstream side of the air filter;
determining a differential pressure (Δ
P) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data;
comparing the determined differential pressure with a reference value; and
determining a status of the air filter based on the comparison, and providing an output indicating the status of the air filter.
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Abstract
Methods and systems for estimating the loading of an air filter are disclosed herein. The method includes receiving upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter (i.e., the “dirty side of the filter”), receiving downstream air pressure data indicative of an air pressure on a downstream side of the air filter (i.e., the “clean side of the filter”), and receiving downstream temperature data indicative of a temperature on the downstream side of the air filter. The method also includes determining a differential pressure (ΔP) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data.
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Citations
17 Claims
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1. A method, comprising:
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receiving upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter; receiving downstream air pressure data indicative of an air pressure on a downstream side of the air filter; receiving downstream temperature data indicative of a temperature on the downstream side of the air filter; determining a differential pressure (Δ
P) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data;comparing the determined differential pressure with a reference value; and determining a status of the air filter based on the comparison, and providing an output indicating the status of the air filter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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an air filter; and a processing system communicably coupled to the air filter, the processing system structured to; receive upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter; receive downstream air pressure data indicative of an air pressure on a downstream side of the air filter; receive downstream temperature data indicative of a temperature on the downstream side of the air filter; determine a differential pressure (Δ
P) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data;compare the determined differential pressure with a reference value; determine a status of the air filter based on the comparison, the status providing an indication of how the air filter is operating; and provide an output indicating the status of the air filter. - View Dependent Claims (9, 10, 11)
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12. An apparatus, comprising:
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an upstream mass air flow module structured to receive upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter; a downstream air pressure module structured to receive downstream air pressure data indicative of an air pressure on a downstream side of the air filter; a downstream temperature module structured to receive downstream temperature data indicative of a temperature on the downstream side of the air filter; a differential pressure module structured to determine a differential pressure (Δ
P) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data; andan indication module structured to compare the determined differential pressure with a reference value to determine a status of the air filter based on the comparison, the status providing an indication of how the air filter is operating, and providing an output indicating the status of the air filter. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification