Washing pattern determination method
US6760942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2001 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | May 14, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/46
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An apparatus and method for determining a washing pattern of a direct drive inverter-type washing machine. The apparatus comprises a voltage converter for inputting an external alternating current (AC) voltage and rectifying and smoothing the inputted AC voltage to convert it into a drive voltage necessary to a washing mode of a washing machine, a switch for performing a switching operation in response to a motor drive control signal to transfer the drive voltage from the voltage converter to a motor so as to rotate or stop a washing tub, a voltage variation sensing device for measuring a voltage variation when the motor rotates in response to the drive voltage transferred from the switch and outputting the measured result as a voltage variation sense signal, and a microcomputer for driving the motor in a laundry amount sensing pattern at the time that laundry is put into the washing tub, judging the amount of the laundry and the amount of water supply depending on the laundry amount, judging the type of a material of the laundry in response to the voltage variation sense signal at the time that wash water is supplied to the tub, producing an optimum washing pattern appropriate to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.