The Electric Fan as a Cooling Package Air Flow Meter
Date Published: 2012-04-16
Paper Number:2012-01-0954
DOI: 10.4271/2012-01-0954
Citation:
Scott, T., Hofmann, D., and Moore, R., "The Electric Fan as a Cooling Package Air Flow Meter," SAE Technical Paper 2012-01-0954, 2012, doi:10.4271/2012-01-0954.
A D.C. permanent magnet motor powered fan can serve as a cooling package air flow meter. This allows for continuous air flow monitoring during vehicle operation with applications to more precise air flow control schemes. In the freewheel mode, the air flow is a linear function of the open circuit voltage of the motor. In the powered mode, the motor voltage and current can be used with a motor and fan model to predict fan air flow. The model is explained and verifying test results are presented. Comparison of the accuracy and complexity vs. that of arrays of precision anemometers is provided.
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Product Status: In Stock
See papers presented at SAE 2012 World Congress & Exhibition, April 2012, Detroit, MI, USA, Session: Reliability and Robust Design in Automotive Engineering: Reliability and Robust Design in Automotive Aero-Thermal and Fluid Systems
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