Journal of Mechanical Science and Technology

  • 제18권1호
  • /
  • Pages.82-91
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  • 2004
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  • 1738-494X(pISSN)
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  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Minimum Energy Control of an S-CVT Equipped Power Transmission

  • Kim, Jungyun (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 발행 : 2004.01.01
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초록

This article deals with a minimum energy control law of S-CVT connected to a dc motor. The S-CVT can smoothly transit between the forward, neutral, and reverse states without any brakes or clutches, and its compact and simple design and its relatively simple control make it particularly effective for mechanical systems in which excessively large torques are not required. And such an S-CVT equipped power transmission has the advantage of being able to operate the power sources in their regions of maximum efficiency, thereby improving the energy efficiency of the transmission system. The S-CVT was intended to primarily for use in small power capacity transmissions, thus a dc motor was considered here as the power source. We first review the structure and operating principles of the S-CVT, including experimental results of its performance. And then we describe a minimum energy control law of S-CVT connected to a do motor. To do this, we describe the results of an analysis of the dynamics of an S-CVT equipped power transmission and the power efficiency of a DC motor. The minimum energy control design is carried out via B-spline parameterization. And we show numerical results obtained from simulations illustrate the validity of our minimum energy control design, benchmarked with a computed torque control algorithm for S-CVT.

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참고문헌

  1. Proc. of Inter. Conf. on Continuously Variable Power Transmissions CVT '96, Society of Automotive Engineers of Japan, Yokohama, Sept. 11-12, 1996
  2. Proc. of Inter. Congress on Continuously Variable Power Transmissions CVT '99, Sponsored by I Mech E, JSAE, KIVI, SAE, VDI-EKV, Eindhoven, Sept. 16-17, 1999
  3. Proc. of the 7th Inter. Power Transmission and Gearing Conference, Design Engineering Division, ASME, SanDiego, California, Oct. 6-9, 1996
  4. Heera Lee and Hyunsoo Kim, 2002, 'Optimal Engine Operation by Shift Speed Control of a CVT,' in KSME International Journal, pp. 882-888, Vol. 16, Issue 7, KSME
  5. Jungyun Kim, Hanjun Yeom, Park, F. C., Park, Y. I. and Munsang Kim, 2000, 'On the Energy Efficiency of CVT-Based Mobile Robots,' in Proceedings of IEEE International Conference on Robotics and Automation, pp. 1539-1544, Vol. 1, April 24-28, San Francisco, CA, U.S.A. https://doi.org/10.1109/ROBOT.2000.844815
  6. Jungyun Kim, Park, F. C., Yeongil Park, and Shizou, M., 2002, 'Analysis and Control of a Spherical Continuously Variable Transmission,' in Journal of Mechanical Design, pp. 21-29, Vol. 124, Issue 1, ASME https://doi.org/10.1115/1.1436487
  7. Kassankian, J. G., Schlecht, M. F. and Verghese, G. C., 1991, Principles of Power Electronics, Cambridge, MA, Addison-Wesley, Chapter 1-8
  8. Parviz Famouri and Wils L. Cooley, 1994, 'Design of DC Traction Motor Drives for High Efficiency Under Accelerating Conditions,' IEEE Transactions on Industry Applications, Vol. 30, No. 4, July/August https://doi.org/10.1109/28.297932
  9. Tadashi Egami, Hideaki Morita and Takeshi Tsuchiya, 1990, 'Efficiency optimized Model Reference Adaptive Control System for a de Motor,' in IEEE Transactions on Industrial Electronics, Vol. 37, No. 1, February https://doi.org/10.1109/41.45840
  10. Takahashi, S., 1998, 'Fundamental Study of Low Fuel Consumption Control Scheme Based on Combination of Direct Fuel Injection Engine and Continuously Variable Transmission,' in Proc. of the 37th IEEE Conf. on Decision and Control, pp. 1522-1529, Tampa, Florida https://doi.org/10.1109/CDC.1998.758505
  11. Werner Leonhard, 1996, Control of Electrical Drives, 2nd Ed., Springer