Cylinder deactivation to reduce fuel enrichment after fuel cutoff modes
US8667953B2 · kind B2 · utility
11Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2009 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system includes a fuel cutoff module and a cylinder deactivation module. The fuel cutoff module generates a fuel cutoff signal when a deceleration fuel cutoff condition occurs, wherein fueling to M cylinders of an engine is disabled based on the fuel cutoff signal, and wherein M is an integer greater than or equal to one. The cylinder deactivation module deactivates the M cylinders in response to the fuel cutoff signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.