Control and detection of misfire are an essential part of on-board diagnosis (OBD) of modern spark ignition (SI) engines. This study proposes a novel model-based technique for misfire detection for a multicylinder SI engine. The new technique uses a dynamic engine model to determine mean output power, which is then used to calculate a new parameter for misfire detection. The new parameter directly relates to combustion period and is sensitive to engine speed fluctuations caused by misfire. The new technique requires only measured engine speed data and is computationally viable for use in a typical engine control unit (ECU). The new technique is evaluated experimentally on a four-cylinder 1.6-l SI engine. Three types of misfire are studied including single, continuous, and multiple-event. The steady-state and transient experiments were done for a wide range of engine speeds and engine loads, using a vehicle chassis dynamometer and on-road vehicle testing. The validation results show that the new technique is able to detect all three types of misfire with up to 94% accuracy during steady-state conditions. The new technique is augmented with a compensation factor to improve the accuracy of the technique for transient operations. The resulting technique is shown to be capable of detecting misfire during both transient and steady-state engine conditions.
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September 2015
Research-Article
Misfire Detection of Spark Ignition Engines Using a New Technique Based on Mean Output Power
M. Boudaghi,
M. Boudaghi
Department of Mechanical Engineering,
e-mail: mahdi_boodaghi@sina.kntu.ac.ir
K. N. Toosi University of Technology
,Mollasadra Street
,Tehran 19991-43344
, Iran
e-mail: mahdi_boodaghi@sina.kntu.ac.ir
Search for other works by this author on:
M. Shahbakhti,
M. Shahbakhti
Department of Mechanical
Engineering-Engineering Mechanics,
e-mail: mahdish@mtu.edu
Engineering-Engineering Mechanics,
Michigan Technological University
,1400 Townsend Drive
,Houghton, MI 49931
e-mail: mahdish@mtu.edu
Search for other works by this author on:
S. A. Jazayeri
S. A. Jazayeri
Department of Mechanical Engineering,
e-mail: jazayeri@kntu.ac.ir
K. N. Toosi University of Technology
,Mollasadra Street
,Tehran 19991-43344
, Iran
e-mail: jazayeri@kntu.ac.ir
Search for other works by this author on:
M. Boudaghi
Department of Mechanical Engineering,
e-mail: mahdi_boodaghi@sina.kntu.ac.ir
K. N. Toosi University of Technology
,Mollasadra Street
,Tehran 19991-43344
, Iran
e-mail: mahdi_boodaghi@sina.kntu.ac.ir
M. Shahbakhti
Department of Mechanical
Engineering-Engineering Mechanics,
e-mail: mahdish@mtu.edu
Engineering-Engineering Mechanics,
Michigan Technological University
,1400 Townsend Drive
,Houghton, MI 49931
e-mail: mahdish@mtu.edu
S. A. Jazayeri
Department of Mechanical Engineering,
e-mail: jazayeri@kntu.ac.ir
K. N. Toosi University of Technology
,Mollasadra Street
,Tehran 19991-43344
, Iran
e-mail: jazayeri@kntu.ac.ir
Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 8, 2014; final manuscript received February 9, 2015; published online March 24, 2015. Editor: David Wisler.
J. Eng. Gas Turbines Power. Sep 2015, 137(9): 091509 (9 pages)
Published Online: September 1, 2015
Article history
Received:
July 8, 2014
Revision Received:
February 9, 2015
Online:
March 24, 2015
Citation
Boudaghi, M., Shahbakhti, M., and Jazayeri, S. A. (September 1, 2015). "Misfire Detection of Spark Ignition Engines Using a New Technique Based on Mean Output Power." ASME. J. Eng. Gas Turbines Power. September 2015; 137(9): 091509. https://doi.org/10.1115/1.4029914
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