Washing machine appliance and a method for operating the same
First Claim
1. A method for operating a washing machine appliance, the washing machine appliance having a drum positioned within a tub, the drum defining a wash chamber for receipt of articles for washing, a motor of the washing machine appliance configured for rotating the drum within the tub, the method comprising:
- rotating the drum with the motor;
adjusting an angular velocity of the drum during said step of rotating;
determining a first or second derivative of the angular velocity of the drum after said step of adjusting;
estimating a mass of articles within the wash chamber of the drum based at least in part on the first or second derivative of the angular velocity of the drum from said step of determining;
directing liquid into the tub until a volume of liquid fills the tub to a predetermined height; and
establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from said step of estimating and the volume of liquid from said step of directing.
2 Assignments
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Accused Products
Abstract
A washing machine appliance and a method for operating a washing machine appliance are provided. The method includes estimating a mass of articles within a wash chamber of a drum based at least in part on an inertia of the drum and articles within the wash chamber of the drum, gauging the mass of articles within the wash chamber of the drum based at least in part on a volume of water within a tub, and establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from the step of estimating and the mass of articles within the wash chamber of the drum from the step of gauging.
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Citations
12 Claims
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1. A method for operating a washing machine appliance, the washing machine appliance having a drum positioned within a tub, the drum defining a wash chamber for receipt of articles for washing, a motor of the washing machine appliance configured for rotating the drum within the tub, the method comprising:
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rotating the drum with the motor; adjusting an angular velocity of the drum during said step of rotating; determining a first or second derivative of the angular velocity of the drum after said step of adjusting; estimating a mass of articles within the wash chamber of the drum based at least in part on the first or second derivative of the angular velocity of the drum from said step of determining; directing liquid into the tub until a volume of liquid fills the tub to a predetermined height; and establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from said step of estimating and the volume of liquid from said step of directing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for operating a washing machine appliance, the washing machine appliance having a drum positioned within a tub, the drum defining a wash chamber for receipt of articles for washing, a motor of the washing machine appliance configured for rotating the drum within the tub, the method comprising:
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estimating a mass of articles within the wash chamber of the drum based at least in part on an inertia of the drum and articles within the wash chamber of the drum; gauging the mass of articles within the wash chamber of the drum based at least in part on a volume of water within the tub, the volume of water filling the tub to a predetermined level; and establishing a load type of articles within the wash chamber of the drum based at least in part on the mass of articles within the wash chamber of the drum from said step of estimating and the mass of articles within the wash chamber of the drum from said step of gauging.
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Specification