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Title: Fueling strategy for controlled-autoignition engines

Abstract

Methods and systems for controlling combustion performance of an engine during recompression HCCI combustion are provided. The method includes regulating a valve actuation timing and a fuel injection timing to cause a combustion phasing of at least one cylinder of the engine to approach a target combustion phasing, and estimating current combustion state information based on the combustion phasing. The current combustion state information includes at least one of a temperature, a pressure, and a pre-combustion charge composition associated with the at least one cylinder. The method further includes determining a target fuel injection amount, and determining whether the target fuel injection amount would require actuator settings that violate predetermined constraints in order to cause the combustion phasing to approach the target combustion phasing. A fuel injection amount is adjusted when the target fuel injection amount would require actuator settings that violate the predetermined constraints.

Inventors:
; ; ;
Issue Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1502831
Patent Number(s):
10202927
Application Number:
13/621,433
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
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
DOE Contract Number:  
EE0003533
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Sep 17
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Jade, Shyam, Helstrom, Erik, Stefanopoulou, Anna, and Jiang, Li. Fueling strategy for controlled-autoignition engines. United States: N. p., 2019. Web.
Jade, Shyam, Helstrom, Erik, Stefanopoulou, Anna, & Jiang, Li. Fueling strategy for controlled-autoignition engines. United States.
Jade, Shyam, Helstrom, Erik, Stefanopoulou, Anna, and Jiang, Li. Tue . "Fueling strategy for controlled-autoignition engines". United States. https://www.osti.gov/servlets/purl/1502831.
@article{osti_1502831,
title = {Fueling strategy for controlled-autoignition engines},
author = {Jade, Shyam and Helstrom, Erik and Stefanopoulou, Anna and Jiang, Li},
abstractNote = {Methods and systems for controlling combustion performance of an engine during recompression HCCI combustion are provided. The method includes regulating a valve actuation timing and a fuel injection timing to cause a combustion phasing of at least one cylinder of the engine to approach a target combustion phasing, and estimating current combustion state information based on the combustion phasing. The current combustion state information includes at least one of a temperature, a pressure, and a pre-combustion charge composition associated with the at least one cylinder. The method further includes determining a target fuel injection amount, and determining whether the target fuel injection amount would require actuator settings that violate predetermined constraints in order to cause the combustion phasing to approach the target combustion phasing. A fuel injection amount is adjusted when the target fuel injection amount would require actuator settings that violate the predetermined constraints.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {2}
}

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