Method and system for engine cold start and hot start control
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...
Saved in:
Main Authors | , , , |
---|---|
Format | Patent |
Language | English |
Published |
05.04.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | 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. |
---|---|
Bibliography: | Application Number: US201213720760 |