Deceleration fuel cutoff control systems and methods
US9127603B2 · kind B2 · utility
1Cited by
9References
20Claims
0Family size
Inventors
Key dates
| Filing date | Jan 26, 2012 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Apr 5, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for a vehicle includes a rate of change module, a period estimation module, a deceleration fuel cutoff (DFCO) module, and an injection control module. The rate of change module determines a rate of change of an engine speed. While an engine is being fueled, the period estimation module determines an estimated period of a next DFCO event based on the rate of change of the engine speed. The DFCO control module selectively generates a DFCO signal based on the estimated period. The injection control module cuts off fuel to the engine when the DFCO signal is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.