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Estimating the Useful Life of an ATF Using an Integrated Bulk Oxidation and Friction Degradation Model
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 25, 2004 by SAE International in United States
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An integrated approach to modeling end of useful life of an automatic transmission fluid (ATF) has been developed. The flexible fluid life model allows either predictive or real-time calculations of the end of useful fluid life under different transmission design strategies and customer driver behaviors as reflected in operating temperatures, shift characteristics, fluid volume and fluid distribution throughout the transmission. An estimation of remaining useful fluid life is monitored using two metrics, namely bulk oxidation, as a general indicator of fluid quality, and frictional degradation, as an indicator of shift quality. As operating conditions increase in severity, ATF is subjected to conditions that may shorten its life. Using the developed technique, ATF useful life can be better predicted.
CitationCalcut, B., Sarkar, R., and Linden, J., "Estimating the Useful Life of an ATF Using an Integrated Bulk Oxidation and Friction Degradation Model," SAE Technical Paper 2004-01-3028, 2004, https://doi.org/10.4271/2004-01-3028.
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