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Path planning during combustion mode switch

Patent ·
OSTI ID:1234227

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.

Research Organization:
Robert Bosch GmbH, Stuttgart, DE (Denmark)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0003533
Assignee:
Robert Bosch GmbH
Patent Number(s):
9,222,432
Application Number:
13/681,499
OSTI ID:
1234227
Country of Publication:
United States
Language:
English

References (7)

SI and HCCI Combustion Mode Transition Control of an HCCI Capable SI Engine journal September 2013
SI-HCCI-SI Mode Transition at Different Engine Operating Conditions conference April 2005
The Effects of Two-Stage Cam Profile Switching and External EGR on SI-CAI Combustion Transitions conference April 2007
Demonstrating a SI-HCCI-SI Mode Change on a Volvo 5-Cylinder Electronic Valve Control Engine conference March 2003
A Study of a Gasoline-fueled HCCI Engine∼Mode Changes from SI Combustion to HCCI Combustion∼ conference April 2008
Mode Switch of SI-HCCI Combustion on a GDI Engine conference April 2007
Investigation of a SI-HCCI Combustion Switching Control Method in a Multi-Cylinder Gasoline Engine conference April 2008

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