Method of determining the imbalance of a laundry drum

Details Method of determining the imbalance of a laundry drum Method of determining the imbalance of a laundry drum

2005-12-06

2005-12-06

Assouad, Patrick J. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S064000, C068S012060

Reexamination Certificate

active

06973392

ABSTRACT:
Before a washing machine is switched over to a very high spin speed in the spin program of the washing machine, the existing imbalance due to irregular distribution of laundry in the drum should be checked. If the imbalance is too strong, the spin program should be interrupted if there is a threat of excessively high bearing forces to be expected. The fluctuation in rotary speed, which may have a high frequency due to the drum speed, and of the power consumption of the washing machine motor measured downstream of the direct current intermediate circuit prior to the feed thereof into the inverter for producing the rotary field in the motor. There, the vector product of the current and the voltage for imbalance measurement by determining power is blocked off from mains network interference effects by the high capacitance of the direct current intermediate circuit.

REFERENCES:
patent: 2917175 (1959-12-01), Toma
patent: 5070565 (1991-12-01), Sood et al.
patent: 5677606 (1997-10-01), Otake
patent: 6240586 (2001-06-01), Joo
patent: 6418581 (2002-07-01), Bruce et al.
patent: 6564592 (2003-05-01), Bruce et al.
patent: 6640372 (2003-11-01), Ciancimino et al.
patent: 6642690 (2003-11-01), Kim
patent: 6715175 (2004-04-01), Ciancimino et al.
patent: 2002/0030462 (2002-03-01), Matsushiro et al.
patent: 2003/0056302 (2003-03-01), Broker et al.
patent: 38 22 924 (1989-11-01), None
patent: 41 01 341 (1992-07-01), None
patent: 42 08 989 (1993-09-01), None
patent: 44 31 846 (1996-03-01), None
patent: 199 18 331 (2000-10-01), None
patent: 0 275 862 (1988-07-01), None
patent: 0 313 339 (1989-04-01), None
patent: 1 045 062 (2000-10-01), None
patent: 3 091 511 (1991-04-01), None
patent: 4 314 496 (1992-11-01), None

Affiliated with

Also associated with

Rating

Method of determining the imbalance of a laundry drum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of determining the imbalance of a laundry drum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of determining the imbalance of a laundry drum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3522988