Method and apparatus for controlling the liquid filling in a laundry treating appliance
AssigneeWhirlpool Corporation
InventorDONALD E. ERICKSON
Life of this patent
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Abstract
Disclosed is a method of operating a horizontal axis laundry treating appliance to correct for an error in sensing an amount of supplied liquid caused by a determined change in the attitude of an associated wash tub.
Claims24
A method of operating a laundry treating appliance having a tub defining an interior, a drum defining a treating chamber for receiving laundry for treatment, with the drum located within the interior and rotatable about a rotational axis, and configured to automatically treat laundry according to at least one cycle of operation, the method comprising:
- determining an amount of liquid to be supplied to at least one of the interior and the treating chamber for the at least one cycle of operation;
- supplying liquid to at least one of the interior and the treating chamber;
- sensing the amount of supplied liquid using a sensor operably coupled to the tub;
- determining a change in the attitude of the tub during the supplying of the liquid;
- and
- correcting for an error in sensing the amount of supplied liquid caused by the determined change in the attitude of the tub.
A laundry treating appliance configured to automatically treat laundry according to at least one cycle of operation, comprising:
- a tub defining an interior;
- a drum defining a treating chamber for receiving laundry for treatment, with the drum located within the interior and rotatable about a rotational axis;
- a liquid supply valve selectively providing liquid to at least one of the interior and the treating chamber;
- a liquid level sensor providing a level output indicative of the level of the liquid in the tub;
- an attitude sensor providing an attitude output indicative of a change in the attitude of the tub;
- and
- a controller receiving the level output and the attitude output and operably coupled to the liquid supply valve to control the amount of liquid supplied for the at least one cycle of operation based on the level of liquid indicated by the level output and using the attitude output to correct for an error in the level output induced by a change in attitude.
Dependencies are inferred from the claim text.