Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Automotive Manual Transmission Clutch System Modeling for Foot Effort Hysteresis Characteristics Prediction

자동차 수동 변속기 클러치 시스템의 답력 이력 특성 예측 모델

  • Lee, Byoung-Soo (Faculty of Mechanical and Automotive Engineering, Keimyung University)
  • 이병수 (계명대학교 기계자동차공학부)
  • Published : 2008.09.01
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Abstract

A typical clutch system for automotive manual transmissions transfers hydraulic pressure generated by driver's pedal manipulation to the clutch diaphragm spring. The foot effort history during the period of push is different than the period of the clutch pedal's return. The effort or load difference is called clutch foot effort hysteresis. It is known that the hysteresis is caused by friction. The frictional force and moment are produced between various component contact points such as between the rubber seal and the inner wall inside the hydraulic cylinder and between the diaphragm spring and the pressure plate, etc. Understanding the clutch pedal foot effort hysteresis is essential for a clutch release system design and analysis. The dynamic model for a clutch release system is developed for the foot effort hysteresis prediction and a simulation analysis is performed to propose a tool for analysing a clutch system.

Keywords

References

  1. D. Ardayfio and J. Opra, "Brake and Clutch Pedal System Optimization Using Design for Manufacture and Assembly," SAE 920774, 1992
  2. A. Szadkowski, "Clutch Lever Design Issues," SAE 2004-01-1229, pp.809-820, 2004
  3. B. S. Yang, "Sealing Performance of Oil Seal," J. KSTLE, Vol.3, No.1, pp.12-17, 1987
  4. J. U. Choi, I. K. Cheon, H. J. Kim and C. K. Kim, "Finite Element Analysis of the Sealing Mechanism for an U-Cup Seal," J. KSTLE, Vol.10, No.3, pp.12-17, 1997
  5. C. K. Kim and I. K. Cheon, "On The Analysis of Rubber Oil Seal in Consideration of Heat Stress," J. KSTLE, Vol.10, No.2, pp.39-42, 1994
  6. S. W. Han, W. D. Kim and H. J. Lee, "Numerical Analysis of Water Seal Characteristics," Annual Research Report, KIMM, Vol.24, pp.175-188, 1994
  7. T. Raparelli, A. M. Bertetto and L. Mazza, "Experimental and Numerical Study of Friction in an Elastomeric Seal for Pneumatic Cylinders," Triboloty International, Vol.30, No.7, pp. 547-552, 1997 https://doi.org/10.1016/S0301-679X(97)00015-7
  8. M.-H. Im, J.-C. Lee and B.-E. Gu, "Finite Element Analysis of Primary Cup-Seal in a Clutch Master Cylinder," Transactions of KSAE, Vol.10, No.3, pp.143-150, 2002
  9. B. Lee, "Friction Characteristics of an Hydraulic Cylinder for an Automotive Manual Clutch," Transactions of KSAE, Vol.14, No.4, pp.32-38, 2006
  10. J.-C. Lee, M.-H. Im, B. Lee, J. H. Jang, Y. S. Jung, M. D. Hur and B. K. Choi, "An Experimental Study on the Friction Coefficient of Rubber for Clutch Master Cylinder Cup-Seal," Transactions of KSAE, Vol.11, No.5, pp.112-118, 2003
  11. J. O. Almen and A. Laszlo, "The Uniform- Section Disk Spring," Transactions of ASME, Vol.58, pp.305-315, 1936
  12. G. Curti and R. Montanini, "On the Influence of Friction in the Calculation of Conical Disk Springs," Journal of Mechanical Design, Vol.121, pp.622-627, 1999 https://doi.org/10.1115/1.2829508
  13. B. Lee, "Load Characteristics and Sensitivity Analysis for an Automotive Clutch Diaphragm Spring," Transactions of KSAE, Vol.14, No.1, pp.54-59, 2006
  14. T. Hasebe, H. Yamamoto, K. Morita, K. Hibi, T. Ninomiya and Y. Goto, "Experimental Study of Reduction Methods for Clutch Pedal Vibration and Drive Train Rattling Noise From Clutch System," SAE 932007, 1993
  15. K. Imai, M. Yamada, T. Ninomiya and T. Nimura, "Pressure Pulsation Transfer in Clutch Hydraulic Systems," SAE 891307, 1989
  16. F. Fraysse and L. Cheze, "An Exploratory Investigation of the Discomfort of Clutch Pedal Operation Using a Musculoskeletal Biomechanical Model," J. of Biomechanics, Vol.39, 2006
  17. X. Wang, B. Breton-Gadegbeku and L. Bouzon, "Biomechanical Evaluation of the Comfort of Automobile Clutch Pedal Operation," Int. J. of Industrial Ergonomics, Vol.34, pp.209-221, 2004 https://doi.org/10.1016/j.ergon.2004.04.007
  18. D. A. Jr. Haessig, "On the Modeling and Simulation of Friction," Transaction of the ASME, Vol.113, pp.354-362, 1991