Fuzzy logic control method for reducing water consumption in a m

Details Fuzzy logic control method for reducing water consumption in a m Fuzzy logic control method for reducing water consumption in a m

1992-05-01

1994-02-08

Pal, Asok

Cleaning and liquid contact with solids

Processes

Combined

8158, 68 1205, 364148, B08B 704

Patent

active

052845230

ABSTRACT:
A fuzzy logic based control method reduces the amount of water used by a washing machine or dishwasher during a cycle. A sensor detects when the washer has adequate water by monitoring the behavior of the washer pump motor as fresh water is coming in. There is a characteristic oscillation of the magnitude of the motor current as the pump cavitates during this operation, which diminishes when the washer is properly filled. By using fuzzy logic to sense this point of diminished or ceased cavitation and shutting off the incoming water, substantial savings of water can be achieved.

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