A measurement system and the associated signal processing algorithm for accurately determining engine crankshaft speed fluctuations are presented in this work. The main features of the system include ruggedness, simple sensor installation, and high accuracy and resolution. The ruggedness and simplicity of the system are characterized by the use of highly reliable Hall-Effect Transducers (HETs) mounted on the engine flywheel bell housing to sense the passing of flywheel gear teeth. A relatively significant noise component is introduced to the HET measurements by the nonuniform flywheel gear tooth spacings. The high measurement accuracy is achieved by a very computationally efficient signal processing algorithm based on two HET inputs. The advantages of the current system over the single HET systems commonly used in practice are clearly demonstrated through experiments on a Detroit Diesel Corporation 6V-92TA engine.
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December 1998
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A Rugged and Reliable System for Measuring Engine Crankshaft Speed Fluctuations
Hsi-Yung Feng
Hsi-Yung Feng
Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9
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Hsi-Yung Feng
Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9
J. Dyn. Sys., Meas., Control. Dec 1998, 120(4): 533-536 (4 pages)
Published Online: December 1, 1998
Article history
Received:
November 12, 1996
Online:
December 3, 2007
Citation
Feng, H. (December 1, 1998). "A Rugged and Reliable System for Measuring Engine Crankshaft Speed Fluctuations." ASME. J. Dyn. Sys., Meas., Control. December 1998; 120(4): 533–536. https://doi.org/10.1115/1.2801498
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