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Principle and characteristics of original hydraulic traction drive CVT

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Abstract

A new CVT (continuously variable transmission) design which is a traction drive variator has been introduced. Analytical predictions and experimental results of the steady state which demonstrate higher efficiencies and power capacities of the new design are presented. The traction and power loss are then predicted by using models including evaluation of creep and spin in the contact patch. Analytical predictions of the transmission reach reasonable agreement with the experimental data, and the transmission efficiency of the system increases as the input torque increases while the input speed is certain. The research results can be further used in hydraulic traction drive CVT design and optimization.

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Authors and Affiliations

  1. National Key Laboratory of Vehicular Transmission (Beijing Institute of Technology), Beijing, 100081, China

    Chu-jing Shen  (沈楚敬), Shi-hua Yuan  (苑士华), Ji-bin Hu  (胡纪滨), Wei Wu  (吴维), Chao Wei  (魏超) & Xing Chen  (陈星)

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  1. Chu-jing Shen  (沈楚敬)
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  2. Shi-hua Yuan  (苑士华)
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  3. Ji-bin Hu  (胡纪滨)
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  4. Wei Wu  (吴维)
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  5. Chao Wei  (魏超)
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  6. Xing Chen  (陈星)
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Corresponding author

Correspondence to Shi-hua Yuan  (苑士华).

Additional information

Foundation item: Project(A2220060029) supported by the National Ministries of Basic Scientific Research Fund Project, China; Project (9140C340201113403) supported by the Foundation of the National Key Laboratory of Vehicular Transmission, China

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Shen, Cj., Yuan, Sh., Hu, Jb. et al. Principle and characteristics of original hydraulic traction drive CVT. J. Cent. South Univ. 21, 1654–1659 (2014). https://doi.org/10.1007/s11771-014-2107-0

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  • DOI: https://doi.org/10.1007/s11771-014-2107-0

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