Method for estimating the weight of the contents of a household appliance
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United States of America Patent
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Apr 30, 2013
Grant Date -
Mar 17, 2011
app pub date -
Apr 2, 2008
filing date -
Dec 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for estimating the value of the weight of the contents of the oscillating assembly of an electronically controlled household appliance is provided. The oscillating assembly is connected to a frame by a suspension system having a damper. The damper includes at least two mechanical elements adapted to move reciprocally, a magnetic element which detects reciprocal motion, depending upon the distance between the two elements, the magnetic sensor generates an electrical signal. A reading of an initial value of an electric parameter, is taken when the oscillating assembly is empty. A mathematical function is identified on the basis of the initial value and of a plurality of predetermined parameters, which relate the electrical parameter to the weight of the contents. A second reading is taken when contents have been loaded in, and the value of the weight of the contents is estimated by using the mathematical function and electric parameters.
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