Method and system for engine control
US9297329B2 · kind B2 · utility
9Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jun 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.