METHOD FOR DETECTING SATELLIZATION SPEED OF CLOTHES LOAD IN A HORIZONTAL AXIS LAUNDRY TREATING APPLIANCE
First Claim
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1. A method of operating a laundry treating appliance having a rotatable drum defining a treating chamber for receiving a laundry load for treatment, and a motor for rotating the treating chamber, the method comprising:
- accelerating the rotational speed of the treating chamber from a non-satellizing speed to a satellizing speed by increasing the rotational speed of the motor;
generating a first torque signal indicative of the motor torque over time for at least a portion of the accelerating;
comparing the shape of the first torque signal to the shape of a second torque signal indicative of rotating the treating chamber when the laundry load is satellized within the treating chamber; and
determining the laundry load is satellized when the shape of the first torque signal matches the shape of the second torque signal.
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Abstract
A laundry treating appliance may include a rotatable treating chamber for receiving a laundry load for treatment, and a motor for rotating the treating chamber, and may be operated such that during the acceleration of the laundry load toward a satellizing speed, the satellizing of the laundry load may be detected, whereby subsequent operation of the laundry treating appliance may be controlled based on the detection.
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Citations
17 Claims
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1. A method of operating a laundry treating appliance having a rotatable drum defining a treating chamber for receiving a laundry load for treatment, and a motor for rotating the treating chamber, the method comprising:
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accelerating the rotational speed of the treating chamber from a non-satellizing speed to a satellizing speed by increasing the rotational speed of the motor; generating a first torque signal indicative of the motor torque over time for at least a portion of the accelerating; comparing the shape of the first torque signal to the shape of a second torque signal indicative of rotating the treating chamber when the laundry load is satellized within the treating chamber; and determining the laundry load is satellized when the shape of the first torque signal matches the shape of the second torque signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A fabric treating appliance for automatically treating a laundry load according to at least one cycle of operation, comprising:
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a rotatable treating chamber for receiving the laundry load for treatment; a motor for rotating the treating chamber; a speed sensor outputting a speed signal indicative of the rotational speed of the motor; a torque sensor outputting a torque signal indicative of the torque of the motor; and a controller operably coupled to the motor and receiving the speed signal and torque signal, wherein the controller provides an acceleration signal to the motor to increase the rotational speed of the motor to accelerate the rotational speed of the treating chamber from a non-satellizing speed to a satellizing speed, and determines that the treating chamber has reached the satellizing speed by determining when the shape of at least a portion of the torque signal matches a corresponding portion of a reference torque signal, which is indicative of the torque when the laundry load is satellized. - View Dependent Claims (16, 17)
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Specification