Title: Path planning during combustion mode switch

Abstract

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.

Inventors:

Jiang, Li; Ravi, Nikhil

Issue Date:

2015-12-29

Research Org.:

Robert Bosch GmbH, Stuttgart, DE (Denmark)

Sponsoring Org.:

USDOE

OSTI Identifier:

1234227

Patent Number(s):

9222432

Application Number:

13/681,499

Assignee:

Robert Bosch GmbH

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

F02D13/02 - during engine operation

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

F02D2250/21 - during a transition between engine operation modes or states
F02D2200/701 - Information about vehicle position, e.g. from navigation system or GPS signal
F02D41/3041 - {with means for triggering compression ignition, e.g. spark plug}
F02D41/3035 - {a mode being the premixed charge compression-ignition mode}
F02D41/307 - {to avoid torque shocks}
F02D41/3076 - {with special conditions for selecting a mode of combustion, e.g. for starting, for diagnosing}
F02D37/02 - one of the functions being ignition
F02D2041/1412 - {using a predictive controller}

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DOE Contract Number:  

EE0003533

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Nov 20

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING