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Path planning during combustion mode switch

United States Patent

9,222,432
December 29, 2015
View the Complete Patent at the US Patent & Trademark Office
Systems and methods are provided for transitioning between a first combustion mode and a second combustion mode in an internal combustion engine. A current operating point of the engine is identified and a target operating point for the internal combustion engine in the second combustion mode is also determined. A predefined optimized transition operating point is selected from memory. While operating in the first combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion engine to approach the selected optimized transition operating point. When the engine is operating at the selected optimized transition operating point, the combustion mode is switched from the first combustion mode to the second combustion mode. While operating in the second combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion to approach the target operating point.
Jiang; Li (Ann Arbor, MI), Ravi; Nikhil (Mountain View, CA)
Robert Bosch GmbH (Stuttgart, DE)
13/ 681,499
20130131957
November 20, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under grant No. DE-EE0003533 award by the Department of Energy. The Government has certain rights in this invention.