Powertrain overspeed protection
US7524265B2 · kind B2 · utility
3Cited by
3References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2510/1015
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of inhibiting an overspeed condition in a vehicle powertrain includes monitoring at least one of an engine speed and a transmission input shaft speed of a torque converter that transfers drive torque between an engine and a transmission and determining an operating condition of the vehicle powertrain. The method further includes determining a first threshold speed based on the operating condition and reducing an engine torque request when the at least one of the engine speed and the transmission input shaft speed exceeds the first threshold speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.