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Transient Control of a Multi Cylinder HCCI Engine During a Drive Cycle

Haraldsson, Göran LU ; Tunestål, Per LU ; Johansson, Bengt LU and Hyvönen, Jari LU (2005) In SAE Special Publications 2005(1963). p.347-362
Abstract
This study applies a state feedback-based Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine. At speeds above 1500 rpm is the FTM's bandwidth broadened by using the VCR feature of this engine, according to a predefined map, which is a function of load and engine speed. Below 1500 rpm is the PID-based CLCC using VCR applied instead of the FTM while slow cylinder balancing is effectuated by the FTM.



Performance of the two CLCC controllers are evaluated during a European EC2000 drive cycle, while HC, CO and CO2 emissions are measured online by a Fast Response Infrared (FRI) emission equipment. A load and speed map calculated for a 1.6L Opel... (More)
This study applies a state feedback-based Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine. At speeds above 1500 rpm is the FTM's bandwidth broadened by using the VCR feature of this engine, according to a predefined map, which is a function of load and engine speed. Below 1500 rpm is the PID-based CLCC using VCR applied instead of the FTM while slow cylinder balancing is effectuated by the FTM.



Performance of the two CLCC controllers are evaluated during a European EC2000 drive cycle, while HC, CO and CO2 emissions are measured online by a Fast Response Infrared (FRI) emission equipment. A load and speed map calculated for a 1.6L Opel Astra is used to get reference values for the dynamometer speed and the load control. The drive cycle test is initiated from a hot engine and hence no cold start is included. Commercial RON/MON 92/82 gasoline, which corresponds to US regular, is utilized.



The Linear Quadratic Gaussian (LQG) state feedback controller handles most tasks well, but has some difficulty with retarded combustion phasings, where the controller is outside of its design range. A mean fuel mileage of 6.8 L/100 km is achieved, which is an improvement of 13% compared to an equivalent SI simulation using steady state data from the same engine. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Drive Cycle, Transient Control, Engine, HCCI, Combustion
in
SAE Special Publications
volume
2005
issue
1963
pages
347 - 362
publisher
Society of Automotive Engineers
external identifiers
  • other:SAE Technical Paper 2005-01-0153
  • scopus:79959848393
ISSN
0148-7191
language
English
LU publication?
yes
id
50916a60-6c1c-4dad-a407-6c00e1e62e2c (old id 538537)
alternative location
http://www.sae.org/technical/papers/2005-01-0153
date added to LUP
2007-09-19 14:41:25
date last changed
2017-05-28 04:20:42
@inproceedings{50916a60-6c1c-4dad-a407-6c00e1e62e2c,
  abstract     = {This study applies a state feedback-based Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine. At speeds above 1500 rpm is the FTM's bandwidth broadened by using the VCR feature of this engine, according to a predefined map, which is a function of load and engine speed. Below 1500 rpm is the PID-based CLCC using VCR applied instead of the FTM while slow cylinder balancing is effectuated by the FTM.<br/><br>
<br/><br>
Performance of the two CLCC controllers are evaluated during a European EC2000 drive cycle, while HC, CO and CO2 emissions are measured online by a Fast Response Infrared (FRI) emission equipment. A load and speed map calculated for a 1.6L Opel Astra is used to get reference values for the dynamometer speed and the load control. The drive cycle test is initiated from a hot engine and hence no cold start is included. Commercial RON/MON 92/82 gasoline, which corresponds to US regular, is utilized.<br/><br>
<br/><br>
The Linear Quadratic Gaussian (LQG) state feedback controller handles most tasks well, but has some difficulty with retarded combustion phasings, where the controller is outside of its design range. A mean fuel mileage of 6.8 L/100 km is achieved, which is an improvement of 13% compared to an equivalent SI simulation using steady state data from the same engine.},
  author       = {Haraldsson, Göran and Tunestål, Per and Johansson, Bengt and Hyvönen, Jari},
  booktitle    = {SAE Special Publications},
  issn         = {0148-7191},
  keyword      = {Drive Cycle,Transient Control,Engine,HCCI,Combustion},
  language     = {eng},
  number       = {1963},
  pages        = {347--362},
  publisher    = {Society of Automotive Engineers},
  title        = {Transient Control of a Multi Cylinder HCCI Engine During a Drive Cycle},
  volume       = {2005},
  year         = {2005},
}