SYSTEM AND METHOD TO VERIFY INSTALLATION OF ASYMMETRIC PISTON
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United States of America Patent
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Jun 29, 2017
app pub date -
Dec 29, 2015
filing date -
Dec 29, 2015
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Abstract
In one embodiment, a method may include retrieving, via a processor, a fundamental frequency of a cylinder type from a memory communicatively coupled to the processor, receiving, via the processor, a first signal from a first knock sensor disposed on a cylinder. The cylinder is disposed in an engine. The method may also include deriving whether a number of amplitudes of the first signal at the fundamental frequency and one or more harmonic frequencies exceed an undesired installation threshold value, and identifying an asymmetric piston as having an undesired installation if the undesired installation threshold value exceeds the number of amplitudes of the first signal and the one or more harmonic frequencies.
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