Method and apparatus for controlling combustion mode transitions in an internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 28, 2011
Grant Date -
Sep 30, 2010
app pub date -
Mar 25, 2009
filing date -
Mar 25, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An internal combustion engine is operative in a spark ignition combustion mode and a controlled auto-ignition combustion mode. Operating the engine includes commanding a transition from a first combustion mode to a second combustion mode. A change in openings and closings of the intake and exhaust valves is commanded to a preferred duration of a negative valve overlap period corresponding to operating in the second combustion mode. Fuel injection parameters and spark ignition events are adjusted to effect operation in the second combustion mode only when a realized duration of the negative valve overlap period exceeds a predetermined threshold.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully