Method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine
Abstract
The method comprises operating an engine and collecting a real-time accelerometer signal from an accelerometer sensor. The real-time accelerometer signal is digitized and filtered to isolate data in a frequency range associated with combustion to produce a filtered signal data set. The filtered signal data set is integrated to produce an integrated signal data set, and misfire is detected by comparing the integrated signal data set with a predetermined reference data set associated with the same operating point. The apparatus is a control system for an engine that comprises an accelerometer sensor mounted to the engine; a look-up table in which is stored predetermined reference data sets, in association with predetermined operating conditions; and an electronic controller programmed to carry out the foregoing method.
- Inventors:
- Issue Date:
- Research Org.:
- Westport Power Inc., West Vancouver, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531837
- Patent Number(s):
- 8108131
- Application Number:
- 12/788,276
- Assignee:
- Westport Power Inc. (West Vancouver, 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
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Huang, Jian, Cheung, Duran, and Mumford, David. Method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine. United States: N. p., 2012.
Web.
Huang, Jian, Cheung, Duran, & Mumford, David. Method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine. United States.
Huang, Jian, Cheung, Duran, and Mumford, David. Tue .
"Method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine". United States. https://www.osti.gov/servlets/purl/1531837.
@article{osti_1531837,
title = {Method and apparatus for using an accelerometer signal to detect misfiring in an internal combustion engine},
author = {Huang, Jian and Cheung, Duran and Mumford, David},
abstractNote = {The method comprises operating an engine and collecting a real-time accelerometer signal from an accelerometer sensor. The real-time accelerometer signal is digitized and filtered to isolate data in a frequency range associated with combustion to produce a filtered signal data set. The filtered signal data set is integrated to produce an integrated signal data set, and misfire is detected by comparing the integrated signal data set with a predetermined reference data set associated with the same operating point. The apparatus is a control system for an engine that comprises an accelerometer sensor mounted to the engine; a look-up table in which is stored predetermined reference data sets, in association with predetermined operating conditions; and an electronic controller programmed to carry out the foregoing method.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {1}
}
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