METHOD FOR OPERATING A WATER-BEARING DOMESTIC APPLIANCE WITH IMPROVED DETERMINATION OF A ZERO LOAD OF A PUMP AND HOUSEHOLD APPLIANCE FOR SAME

The invention relates to a method for operating a water-bearing domestic appliance 1, comprising a pump 18 for conveying an aqueous liquid 7, a variable-speed permanent-magnet synchronous motor as a pump drive motor 26 and a control unit 8. The method comprises the steps of setting a pump speed n to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RÖMER, RAYMOND, WETZEL, STEFAN, SKRIPPEK, JÖRG
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES DOMESTIC WASHING OR CLEANING FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FURNITURE HUMAN NECESSITIES LAUNDERING LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES SPICE MILLS SUCTION CLEANERS IN GENERAL TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	The invention relates to a method for operating a water-bearing domestic appliance 1, comprising a pump 18 for conveying an aqueous liquid 7, a variable-speed permanent-magnet synchronous motor as a pump drive motor 26 and a control unit 8. The method comprises the steps of setting a pump speed n to a value nl, in which a nozzle pressure p of the pump 18 is not sufficient to build up a conveying flow Q; and measuring torque M of the pump 18 as a measure of idle torque M l. The invention also relates to a water-bearing domestic appliance 1 suitable for carrying out the method.