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Development of an Analysis Program to Predict Efficiency of Automotive Power Transmission and Its Applications
Technical Paper
2018-01-0398
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Prediction of power efficiency of gear boxes has become an increasingly important research topic since fuel economy requirements for passenger vehicles are more stringent, due to not only fuel cost but also environmental regulations. Under this circumstance, the automotive industry is dedicatedly focusing on developing a highly efficient gear box. Thus, the analysis of power efficiency of gear box should be performed to have a transmission that is highly efficient as much as possible at the beginning of design stage. In this study, a program is developed to analyze the efficiency of an entire gearbox, considering all components’ losses such as gear mesh, wet clutches, bearings, oil pump and so on. The analytical models are based on the formulations of each component power loss model which has been developed and published in many existing papers. The program includes power flow analysis of both a parallel gear-train and a planetary gear-train. The program is also implemented with the assumption that the components of power losses are independent of each other. The developed program is employed to estimate the power losses and efficiencies of several automobile gear boxes. The results are then validated by comparing with the experimental data.
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Authors
Citation
Park, K., Kang, M., Lee, J., Son, W. et al., "Development of an Analysis Program to Predict Efficiency of Automotive Power Transmission and Its Applications," SAE Technical Paper 2018-01-0398, 2018, https://doi.org/10.4271/2018-01-0398.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 |
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References
- Schlegel , C. , Hosl , A. and Diel , S. 2009
- Hohn , B. , Michaelis , K. , and Hinterstoiber , M. Optimization of Gearbox Efficiency goriva I maziva 48 4 441 480 2009
- Joachim , F.J. , Borner , J. and Kurz , N. 2010
- Park , D.H. , Seo , T.S. , Lim , D.G. , and Cho , H.B. Theoretical Investigation on Automatic Transmission Efficiency SAE Technical Paper 960426 1996
- Kluger , M. and Greenbaum , J.J. Automatic Transmission Efficiency Characteristics and Gearbox Torque Loss Data Regression Techniques SAE Technical Paper 930907 1993
- Li , S. and Kahraman , A. A Method to Derive Friction and Rolling Power Loss Formulae for Mixed Elastohydrodynamic Lubrication Journal of Advanced Mechanical Design, Systems, and Manufactureing 5 4 252 263 2011
- Kahraman , A. , Ligata , H. , Kienzle , K. , and Zini , D.M. A Kinematics and Power Flow Analysis Methodology for Automatic Transmission Planetary Gear Trains Journal of Mechanical Design 126 1071 1081 2004
- Talbot , D. 2012
- Seetharaman , S. and Kahraman , A. Load-Independent Spin Power Losses of a Spur Gear Pair: Model Formulation Journal of Tribology 131 2009
- Iqbal , S. , Al-Bender , F. , Pluymers , B. and Desmet , W. 2013
- Yuan , Y. , Liu , E.A. , Hill , J. , and Zou , Q. An Improved Hydrodynamic Model for Open Wet Transmission Clutches Journal of Fluids Engineering 129 333 337 2007
- Li , H. , Jing , Q. and Ma , B. Modeling and Parametric Study on Drag Torque of Wet Clutch Proceedings of the FISITA 2012 World Automotive Congress 2012
- Brink , R.V. , Czernik , D.E. , and Horve , L.A. Handbook of Fluid Sealing - Chapter 8. Fundamentals of Mechanical Face Seals New York McGraw-Hill, Inc. 1993
- Organisciak , M. , Baart , P. and Barbera , S. 2015
- Harris , T.A. and Kotzalas , M.N. Rolling Bearing Analysis - Essential Concepts of Bearing Technology Fifth Boca Raton Taylor & Francis 2007
- Kluger , M.A. , Fussner , D.R. , and Roethler , B. A Performance Comparison of Various Automatic Transmission Pumping Systems SAE Technical Paper 960424 1996