#Washing Machine Controller with Mode Design
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A washing machine system comprising: an outer tub; a cylindrical basket rotatably supported within the outer tub, the basket adapted to receive launderable items and wash water during a wash operation.
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The washing machine system of claim 1, wherein the controller is further adapted to instruct the drive motor to rotate the basket at only non-zero rotational accelerations when the rotational speed of the basket is between the maximum resonance speed and the minimum resonance speed.
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The washing machine system of claim 2, wherein the controller is further adapted to instruct the drive motor to successively accelerate the rotational speed of the basket to a speed above the minimum resonance speed and to decelerate the basket to a speed below the maximum resonance speed.
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The washing machine system of claim 4, wherein the controller instructs the drive motor to maintain a non-zero rotational acceleration of the basket during the first, second, and third positive acceleration periods and the first and second negative acceleration periods.
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The washing machine system of claim 1, wherein the controller is further adapted to determine an imbalanced-load parameter based on the amount of power used by the drive motor to rotate the basket at the selective rotational speeds