Low cost brush motor driver in conjunction with low cost SR motor driver
US6407528B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P5/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A combined drive circuit for a split brake system of a motor vehicle has a switched reluctance motor and a brush motor. The switched reluctance motor has multiple phase windings. The combined drive circuit includes a DC power source with first and second supply buses. A SR motor driver supplies current to the switched reluctance motor. The SR motor driver has a first capacitor coupled to the phase windings for storing energy from the phase windings and a second capacitor coupled to the first capacitor and a third supply bus, thereby developing a third supply bus voltage across the second capacitor. A brush motor driver is coupled to the first and second capacitor. The SR motor driver is adapted to supply current to the brush motor. The brush motor driver has a first switching element and a second switching element coupled to the brush motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.