METHOD OF DETECTING AN OFF-BALANCE CONDITION OF A CLOTHES LOAD IN A WASHING MACHINE
First Claim
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1. A method for controlling a spin speed of a wash basket driven by a motor in a washing machine, the method comprising:
- detecting a line voltage from a power line that provides a voltage supply for the motor; and
limiting a maximum torque output of the motor based on the line voltage.
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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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Citations
6 Claims
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1. A method for controlling a spin speed of a wash basket driven by a motor in a washing machine, the method comprising:
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detecting a line voltage from a power line that provides a voltage supply for the motor; and limiting a maximum torque output of the motor based on the line voltage. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification