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PLL Sensing for Engine Diagnostics and Control
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English
Abstract
An electronic phase-lock loop system is described which acts as an FM demodulator to extract the combustion/compression acceleration/deceleration fluctuations in the angular crankshaft velocity from an optical encoder signal. Further processing can provide roughness detection with a second phase-lock loop, and other similarly useful engine control or diagnostic parameters.
Authors
Citation
Morris, J. and Chen, T., "PLL Sensing for Engine Diagnostics and Control," SAE Technical Paper 850494, 1985, https://doi.org/10.4271/850494.Also In
References
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