Method of detecting an off-balance condition of a clothes load in a washing machine
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United States of America Patent
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Oct 25, 2011
Grant Date -
Feb 22, 2007
app pub date -
Oct 7, 2005
filing date -
Aug 16, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An off-balance detection method comprises a plurality of off-balance detection schemes that utilize wash basket speed to detect an off-balance load condition at speed ranges that span the entire spin cycle and include speeds corresponding to natural frequencies of a mass comprising a wash tub and a wash basket. The schemes can be used alone or in combination with one or more of the other schemes. The off-balance detection method can further comprise a power limiting method to prevent motor overload when an off-balance condition is present.
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