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US 8,281,438 B2Granted
Washing machine and method of controlling a washing machine
AssigneeLG Electronics Inc.
InventorsSun Cheol Bae, Kyung Hoon Kim, Han Su Jung, Jae Hyeok Choi, Ja In Koo
Life of this patent
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Abstract
A washing machine and a method of controlling a washing machine are provided. A drum may be rotated from a stopped state to a specific angle less than 180 degrees. While the drum is rotated, a laundry amount may be sensed based on a current value of a motor that rotates the drum. The laundry amount may be sensed simply and accurately.
Claims12
A method of controlling a washing machine that includes a horizontal drum, the method comprising:
- rotating the drum from a stopped state to at a specific angle that is more than approximately 90 degrees rotation from the stopped state, the stopped state being a stopped position;
- and
- while the drum is rotating from the stopped state to at the specific angle, sensing an amount of laundry based on a sum of current components of a motor, corresponding to a section in which the drum rotates from the stopped position to approximately 90 degrees rotation from the stopped position.
A method of controlling a washing machine that includes a horizontal drum, the method comprising:
- rotating the drum from a stopped position to a first position that is more than approximately 90 degrees of rotation from the stopped position;
- while the rotating of the drum is being performed, determining a first sum of current components of a motor when the drum is in a section from the stopped position to a second position that is approximately 90 degrees rotation from the stopped position;
- and
- determining an amount of laundry based on the determined first sum of current components.
1 more element
Dependencies are inferred from the claim text.