Method and apparatus for determining an inertia of a laundry load in a laundry treating appliance
AssigneeWhirlpool Corporation
InventorsBRIAN P. JANKE, FARHAD ASHRAFZADEH, PETER E. ZASOWSKI
Life of this patent
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Abstract
An apparatus and method for determining an inertia of a laundry load for a laundry treating appliance during an acceleration phase, wherein the rotational speed of a rotatable drum of the laundry is controlled based on the determined inertia.
Claims20
A laundry treating appliance for treating a laundry load according to at least one cycle of operation the method comprising:
- a rotatable drum at least partially defining a treating chamber;
- a motor rotating the drum according to a motor control signal;
- and
- a controller operably coupled to the motor and providing a motor control signal to rotate the drum according to a speed profile for the at least one cycle of operation, with the speed profile including an acceleration phase where the speed of the drum is accelerated to a final speed, and the controller repeatedly determining the inertia of the laundry load during the acceleration phase, and setting the final speed based on the inertia.
A laundry treating appliance for treating a laundry load according to at least one cycle of operation the method comprising:
- a rotatable drum at least partially defining a treating chamber;
- a motor rotating the drum according to a motor control signal;
- and
- a controller operably coupled to the motor and programmed to provide a motor control signal to rotate the drum according to a speed profile, for the at least one cycle of operation, which includes an acceleration phase that does not include a constant speed portion, and repeatedly determining the inertia of the laundry load during the acceleration phase.
A laundry treating appliance for treating a laundry load according to at least one cycle of operation the method comprising:
- a rotatable drum at least partially defining a treating chamber;
- a motor rotating the drum according to a motor control signal;
- and
- a controller operably coupled to the motor and programmed to provide a motor control signal to rotate the drum according to a speed profile for the at least one cycle of operation, with the speed profile including an acceleration phase where the speed of the drum is periodically varied, and the controller repeatedly determines the inertia of the laundry load during the acceleration phase.
Dependencies are inferred from the claim text.