Method and apparatus to operate a powertrain system including an electric machine having a disconnected high-voltage battery
US8606447B2 · kind B2 · utility
19Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Nov 11, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A powertrain system includes an electric motor/generator unit. Upon detecting an open high-voltage switch associated with a high-voltage DC electrical bus, low-voltage electrical power is employed to energize the high-voltage DC electrical bus, control parameters are adjusted to operate the electric motor/generator unit in a fault tolerant electric generation mode, an internal combustion engine is operated to spin the electric motor/generator unit, and the electric motor/generator unit is operated in the fault tolerant electric generation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.