Appliance and method for operation using fluid level detection by pattern recognition of motor current
US12419483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jun 16, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An appliance and method for operating an appliance is provided. The appliance includes a pump configured to flow a volume of fluid, a flow nozzle configured to eject the fluid provided from the pump, and a motor configured to selectively operate the pump to flow the fluid through the flow nozzle. The method includes acquiring a dataset including a function of current magnitude and time corresponding to operation of a pump to flow a volume of fluid; determining an average current magnitude based at least on the dataset; determining a standard deviation based at least on the average current magnitude; comparing the standard deviation to a threshold to determine whether to transmit a control command based.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.