Electrical braking transitioning control
US4423363A · kind A · utility
66Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1981 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | Jul 27, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical braking circuit provides smooth transitioning between regenerative and plug braking of a DC electric motor by use of a low ohmic value resistance path to maintain motor torque during transitioning. During initiation of electrical braking, a similar low ohmic resistance path momentarily connects the motor to a power source in order to establish proper magnetic flux in the motor to enable regenerative braking. Both resistance paths are disabled during motoring and braking modes of operation in order to minimize power loss in the resistance paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.