Method of measuring the loading of a washing drum
US6505369B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2103/46
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In a method of measuring the loading of a washing drum 1, drivable by a motor 2, of a washing machine or a washer-drier, in a first phase A the washing drum 1 is accelerated by way of an electronic control system 3 to a first speed of rotation nb which is above the laundry-application speed of rotation na. In order to provide that removal of water from the laundry and machine friction are involved in the measurement result to the minimum possible degree, in a subsequent second phase B the washing drum 1 is braked to a second speed of rotation nc by electrical braking of the motor 2. The electronic control system 3 detects the variation in the braking procedure in regard to speed of rotation and/or braking moment to ascertain the mass moment of inertia of the loaded washing drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.