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Shift speed improvement of a metal belt CVT

  • Materials & Fracture · Solids & Structures · Dynamics & Control · Production & Design
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Abstract

This paper presents a CVT line pressure control strategy for the increased shift speed. Firstly, an algorithm to increase the CVT shift speed is suggested based on a modified CVT shift dynamics and shift speed maps are constructed. In addition, simplified dynamic models of the line pressure and the ratio control valve are derived by considering the CVT shift dynamics, and low level control algorithms for the ratio and the line pressure control are proposed. Using the shift speed maps and the simplified dynamic models of the CVT system, shift performance is investigated. It is found from the experimental and simulation results that improved shift speed can be achieved by increasing the line pressure.

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Reference

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Authors and Affiliations

  1. Graduate School Department Dept. of Mechanical Design Engineering, Sungkyunkwan University, 440-746, Kyunggi-do, Korea

    Heera Lee

  2. Department of Mechanical Design Engineering, Sungkyunkwan University, 440-746, Kyunggi-do, Korea

    Hyunsoo Kim

Authors
  1. Heera Lee
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  2. Hyunsoo Kim
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Correspondence to Hyunsoo Kim.

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Lee, H., Kim, H. Shift speed improvement of a metal belt CVT. KSME International Journal 15, 1623–1629 (2001). https://doi.org/10.1007/BF03185116

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  • DOI: https://doi.org/10.1007/BF03185116

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