LAUNDRY TREATING APPLIANCE AND METHOD OF PREDICTING MECHANICAL DEGRADATION IN A LAUNDRY TREATING APPLIANCE
First Claim
1. A method of predicting mechanical degradation in a laundry treating appliance having a rotatable container at least partially defining a treating chamber for receiving laundry for treatment according to an automatic cycle of operation, and a motor rotationally driving the rotating chamber, the method comprising:
- rotate the rotatable container with the motor;
monitor over time a torque signal for the motor during the rotating;
repeatedly determine over time a friction value from the torque signal;
determine over time a change in the friction value; and
predict mechanical degradation based on the determined change in the friction value.
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Accused Products
Abstract
A laundry treating appliance having a rotatable container at least partially defining a treating chamber for receiving laundry for treatment according to an automatic cycle of operation and a motor rotationally driving the rotating chamber and a method of predicting mechanical degradation in a laundry treating appliance where the method includes rotating a rotatable container with a motor, monitoring over time a torque signal during the rotating, repeatedly determining over time a friction value from the torque signal, and predicting mechanical degradation based on a determined change in the friction value.
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Citations
20 Claims
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1. A method of predicting mechanical degradation in a laundry treating appliance having a rotatable container at least partially defining a treating chamber for receiving laundry for treatment according to an automatic cycle of operation, and a motor rotationally driving the rotating chamber, the method comprising:
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rotate the rotatable container with the motor; monitor over time a torque signal for the motor during the rotating; repeatedly determine over time a friction value from the torque signal; determine over time a change in the friction value; and predict mechanical degradation based on the determined change in the friction value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A laundry treating appliance, comprising:
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a rotatable drum at least partially defining a treating chamber in which a laundry load is received for treatment; a motor operably coupled with the rotatable drum and configured to rotatably drive the drum in response to a motor control signal; and a controller configured to output the motor control signal to rotate the drum, monitor over time a torque signal for the motor during the rotating, repeatedly determine over time a friction value from a torque signal, determine over time a change in the friction value, and predict a mechanical degradation based on the determined change in the friction value. - View Dependent Claims (18, 19, 20)
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Specification