Spin inefficiency detection for a washing machine appliance
US10822735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A washing machine appliance includes a motor for selectively rotating a wash basket within a wash tub. A controller is configured for initiating a spin cycle by ramping up the speed of the wash basket to a target speed. The controller monitors a measured basket speed to determine whether the measured basket speed has reached a predetermined acceleration reference speed within an acceleration time limit or whether the measured basket speed has fallen below a dropout reference speed for a dropout time limit. If either condition exists, the controller adjusts the operation of the washing machine appliance, e.g., by reducing the wash basket speed to permit wash fluid entrained in the annulus to escape and reduce drag on the wash basket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.