Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1991-08-30
1993-04-13
Dolinar, Andrew M.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
73 35, 73587, F02D 4114, F02P 515, G01H 1700, G01L 2322
Patent
active
052012921
ABSTRACT:
An electronic detection system for detecting vibration patterns from physical events, such as engine knocking or articulated speech, senses a vibration source with a wideband transducer to provide a sensed signal, then converts this signal to energy amplitude and spectral frequency form to extract detectable features of the vibration pattern. Events are detected when a controller determines that the sensed energy and spectral data exceed adaptively-predetermined energy and spectral thresholds, preferably for a duration exceeding predefined time windows.
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Chen Carson
Chinn Garry
Grajski Kamil A.
Dolinar Andrew M.
Fernandez Dennis S.
Loral Aerospace Corp.
Radlo Edward J.
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