Controlling the release of a brush motor which has applied a load
US7180255B2 · kind B2 · utility
2Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2005 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/74
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling the release of a brush motor which has applied a load includes several steps. One step includes applying a release current to the brush motor to rotate the brush motor in a direction toward releasing the applied load of the brush motor. Another step includes sensing the commutator bar ripple current of the brush motor. Another step includes determining when to remove the release current using at least the sensed commutator bar ripple current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.