Method and apparatus to detect a mode-gear mismatch during steady state operation of an electro-mechanical transmission
US8298116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Nov 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Control of operation of a hybrid powertrain is provided, wherein mechanical power flow to an output is controlled through selective actuation of torque-transfer clutches. Electric machines are coupled to an energy storage system for electric power flow. The electro-mechanical transmission is operated in a continuously variable operating range state, and, operation of the transmission is monitored. Absence of a mismatch between the commanded continuously variable operating range state and an actual operating state of the transmission is determined. Presence of a mismatch between the commanded operating range state and the actual operating state of the transmission may be determined. Operation of the powertrain is modified when a mismatch between the commanded operating range state and the actual operating state of the transmission is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.