Power tool motor control system and method
US12370665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2024 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Feb 20, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0047
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Embodiments of the disclosure provide a system and method of operating a power tool. The method includes measuring a battery current draw, sampling the battery current draw to generate a plurality of battery current samples, calculating an averaged current value by averaging the plurality of battery current samples, and comparing the averaged current value with a predetermined current value. The method also includes determining a number of motor revolutions, comparing the number of motor revolutions to a startup threshold, and determining a cycle is complete and stopping the motor when the number of motor revolutions exceeds the startup threshold and the averaged current value is greater than the predetermined current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.