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Title: Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal

Abstract

The method comprises operating a calibration engine, and collecting combustion characteristic data and reference accelerometer signals, which are correlated with each other and stored in a calibration table. The calibration table can be used by an engine to determine a real-time normal combustion characteristic when the engine is operating by collecting a real-time accelerometer sensor signal and cross correlating with the correlated data stored in the calibration table. Accordingly, the apparatus comprises a calibration engine comprising a calibration sensor, a reference accelerometer sensor and a data storage device for storing the collected calibration data that is correlated with the collected reference accelerometer signals, and an engine equipped with an accelerometer sensor, a calibration table and an electronic engine controller programmed to receive real-time accelerometer signals and cross correlate them with reference accelerometer signals to determine a real-time normal combustion characteristic.

Inventors:
; ;
Issue Date:
Research Org.:
Westport Power Inc., Vancouver, BC (Canada)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531708
Patent Number(s):
8078389
Application Number:
12/788,273
Assignee:
Westport Power Inc. (Vancouver, BC, CA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
DOE Contract Number:  
FC26-06NT42967
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010-05-26
Country of Publication:
United States
Language:
English

Citation Formats

Huang, Jian, Ancimer, Richard, and Cheung, Duran. Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal. United States: N. p., 2011. Web.
Huang, Jian, Ancimer, Richard, & Cheung, Duran. Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal. United States.
Huang, Jian, Ancimer, Richard, and Cheung, Duran. Tue . "Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal". United States. https://www.osti.gov/servlets/purl/1531708.
@article{osti_1531708,
title = {Method and apparatus for determining a normal combustion characteristic for an internal combustion engine from an accelerometer signal},
author = {Huang, Jian and Ancimer, Richard and Cheung, Duran},
abstractNote = {The method comprises operating a calibration engine, and collecting combustion characteristic data and reference accelerometer signals, which are correlated with each other and stored in a calibration table. The calibration table can be used by an engine to determine a real-time normal combustion characteristic when the engine is operating by collecting a real-time accelerometer sensor signal and cross correlating with the correlated data stored in the calibration table. Accordingly, the apparatus comprises a calibration engine comprising a calibration sensor, a reference accelerometer sensor and a data storage device for storing the collected calibration data that is correlated with the collected reference accelerometer signals, and an engine equipped with an accelerometer sensor, a calibration table and an electronic engine controller programmed to receive real-time accelerometer signals and cross correlate them with reference accelerometer signals to determine a real-time normal combustion characteristic.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {12}
}

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Works referenced in this record:

Machine diagnostic system and method for vibration analysis
patent, September 2001


Spectral misfire detection system and method therefor
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Method for controlling fuel injection in a compression ignition engine
patent, September 2009


Controller and control method for an internal combustion engine using an engine-mounted accelerometer
patent, August 2001


Engine management
patent, July 2006


System for providing a prognosis of future engine faults
patent, August 2001


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