CLAMPING FORCE ADJUSTMENT SYSTEM FOR A CONTINUOUSLY VARIABLE TRANSMISSION

Authors

  • Izhari Izmi Mazali School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81200 Skudai, Johor Bahru, Johor Malaysia
  • Nurulakmar Abu Husain School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81200 Skudai, Johor Bahru, Johor Malaysia
  • Mohd Salman Che Kob School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81200 Skudai, Johor Bahru, Johor Malaysia
  • Zulhilmi Che Daud School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81200 Skudai, Johor Bahru, Johor Malaysia
  • Zainab Asus School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81200 Skudai, Johor Bahru, Johor Malaysia

Keywords:

continuously variable transmission, screw-thread, clamping force, metal pushing V-belt, electro-mechanical

Abstract

Continuously variable transmission (CVT) with a metal pushing V-belt (MPVB) is a type of transmission that is widely used for automotive application. In this type of CVT, engine torque is transferred to the vehicle’s wheels using the traction between MPVB and the CVT’s pulleys. Therefore, sufficient clamping force from the pulleys to MPVB is required. Conventionally, the clamping force is generated by extracting some of the engine power through an oil pump in a hydraulic actuation system. The oil pump converts the engine power into hydraulic pressure exerted on the CVT pulleys so that MPVB can be clamped accordingly. This process, nevertheless, causes inefficiency in the vehicle’s powertrain system since less power is transmitted to the wheels. To address this issue, this paper describes a design of clamping force adjustment system using screw-thread mechanism.

References

Nauheimer, H., Bertsche, B., Ryborz, J. and Novak, W., 2011. Automotive Transmission; Fundamentals, Selection, Design and Application, Second Edition. Springer. Berlin-Heidelberg.

Bonsen, B., Pulles, R. J., Simons, S. W. H., Steinbuch, M. and Veenhuizen, P. A., 2005. Implementation of a slip controlled CVT in a production vehicle, IEEE Conference on Control Applications 2005, Toronto, Canada, 1212-1217.

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Rothenbuehler, Y., 2009. New Slip Synthesis and Theoretical Approach of CVT Slip Control. Phd. Thesis: École Polytechnique Fédérale de Lausanne, Switzerland.

Tawi, K. B., Mazali, I. I., Supriyo, B., Husain, N. A., Kob, M. S. C., Abidin, Y. Z., 2014. Pulleys' axial movement mechanism for electro-mechanical continuously variable transmission. Applied Mechanics and Materials. Automotive Engineering and Mobility Research, 633, 185-192.

Supriyo, B., Tawi, K. B. and H. Jamaluddin., 2012. Experimental study of an electro-mechanical CVT ratio controller. International Journal of Automotive Technology, 14, 2, 13-323.

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Published

2018-11-26

How to Cite

Mazali, I. I., Abu Husain, N., Che Kob, M. S., Che Daud, Z., & Asus, Z. (2018). CLAMPING FORCE ADJUSTMENT SYSTEM FOR A CONTINUOUSLY VARIABLE TRANSMISSION. Journal of Transport System Engineering, 5(1). Retrieved from https://jtse.utm.my/index.php/jtse/article/view/89

Issue

Vol. 5 No. 1 (2018): Volume 5 Issue 1 (December)

Section

Transport System Engineering

License

Copyright of articles that appear in Journal of Transpot System Engineering (JTSE) belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions or any other reproductions of similar nature.

Disclaimer: The views and opinions expressed in the articles are those of the authors and do not necessarily reflect the official policy or position of the JTSE. Examples of analysis performed within are only examples and they should not be utilized in real-world. Assumptions made within the analysis are not reflective of the position of any JTSE entities.

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