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Engine Stop Position Estimation

Journal Article
2012-01-0720
ISSN: 1946-3936, e-ISSN: 1946-3944
DOI: https://doi.org/10.4271/2012-01-0720
Published April 16, 2012 by SAE International in United States
Engine Stop Position Estimation
Sector:
Citation: Mueller, M., "Engine Stop Position Estimation," SAE Int. J. Engines 5(2):602-607, 2012, https://doi.org/10.4271/2012-01-0720.
Language: English

Abstract:

This paper describes a method to estimate the engine stop position using any production style crank position sensor, while accounting for possible engine rock-back. The approach is based on modeling the engine speed state, achieving robustness and ease of calibration by adapting the rubbing friction model component during the first part of engine coast-down, followed by open-loop modeling when the engine speed has dropped below the sensor signal validity threshold.

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