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US 2018/0002857 A1Published application
Laundry washing machine with automatic detergent dispensing and/or rinse operation type selection
AssigneesMidea America Corporation, Midea Group Co., Ltd.
InventorsPhillip C. Hombroek, Christopher G. Hoppe
Life of this patent
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Abstract
A laundry washing machine and method utilize weight, fluid level and fluid property sensors to dynamically select a load type, control a wash cycle and control an amount of detergent dispensed during a wash cycle.
Claims26
A laundry washing machine, comprising:
- a wash tub disposed within a housing;
- a detergent dispenser configured to dispense detergent for washing a load disposed in the wash tub;
- a weight sensor operatively coupled to the wash tub to sense a weight associated with the wash tub;
- a fluid level sensor configured to sense a fluid level in the wash tub;
- a fluid property sensor configured to sense turbidity and/or conductivity of fluid from the wash tub;
- and
- a controller coupled to the detergent dispenser and the weight, fluid level, and fluid property sensors, the controller configured to dynamically select a load type from among a plurality of load types based at least upon weight and fluid level values sensed respectively by the weight and fluid level sensors, and to control a wash cycle at least based upon the selected load type and a fluid property value sensed by the fluid property sensor, wherein the controller is configured to control the wash cycle at least by controlling an amount of detergent dispensed by the detergent dispenser based at least in part upon the fluid property value.
4 more elements
A method of operating a laundry washing machine of the type including a wash tub disposed within a housing and a detergent dispenser configured to dispense detergent for washing a load disposed in the wash tub, the method comprising:
- selecting a load type from among a plurality of load types based upon weight and fluid level values sensed respectively by a weight sensor operatively coupled to the wash tub and a fluid level sensor configured to sense fluid level in the wash tub;
- controlling a wash cycle at least based upon the selected load type and a fluid property value sensed by a fluid property sensor configured to sense turbidity and/or conductivity of fluid from the wash tub, including controlling an amount of detergent dispensed by a detergent dispenser based at least in part upon the fluid property value.
Dependencies are inferred from the claim text.