Electric working machine
US11539314B2 · kind B2 · utility
1Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2017 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Nov 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/0241
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric working machine in one aspect of the present disclosure includes: a motor; a driver to drive the motor; a first control circuit; and a second control circuit. The first control circuit controls the driver such that the motor rotates in a set rotation direction. The second control circuit is provided separately from the first control circuit. The second control circuit detects a rotation direction of the motor and performs an abnormality handling process to stop rotation of the motor in response to a situation where the detected rotation direction is reverse to the set rotation direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.