Patent ID: 7749328
Filing Date: 2010-07-06
Classification: A47L,G05B

Abstract:
1. A method of cleaning dishes in a dishwasher in accordance with a programmed wash cycle implemented by a central control unit and comprising a rinse step where a rinse liquid is recirculated in the dishwasher and a cleaning step where a wash liquid is recirculated in the dishwasher, the method comprising: determining a solubility of soil on the dishes to be cleaned by determining at least one of a temperature of the rinse liquid, and a length of time for a turbidity of the rinse liquid to stop increasing during the rinse step by determining from a turbidity sensor a difference in turbidity measurements associated with a selective operation of an upper spray device and a lower spray device; and setting at least one operating parameter of the cleaning step based on the determined solubility.