System and method for processing an accelerometer signal to assist in combustion quality control in an internal combustion engine
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United States of America Patent
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Apr 3, 2007
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app pub date -
Nov 18, 2005
filing date -
Jun 30, 2003
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Abstract
A method for processing an accelerometer signal associated with the combustion process in an operating internal combustion engine, the method comprising the steps of measuring an accelerometer signal across a window of selected crank angle degrees during a cycle of the engine, the measured accelerometer signal including a combustion acceleration component and a motored acceleration components; and applying a shape function to the measured accelerometer signal to reduce the motored acceleration component.
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