Analysis of Slip in a Continuously Variable Transmission

B. Bonsen, T.W.G.L. Klaassen, K.G.O. Meerakker, van de, M. Steinbuch, P.A. Veenhuizen

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High clamping force levels reduce the efficiency of the Continuously Variable Transmission (CVT). However, high clamping force levels are necessary to prevent slip between the belt and the pulleys. If a small amount of slip is allowed, the clamping force level can be reduced. To achieve this, slip in a CVT is investigated. From measurements on an experimental setup, Traction curve data and efficiency measurements are derived. A model describing slip in a CVT is verified using measurements with a belt with increased play. It is found that small amounts of slip can be controlled in a stable way on the setup. The traction curve was mostly dependent on the CVT ratio. Efficiency is found to be highest for 1 to 2\% slip depending on the ratio. The model is in reasonable agreement with the measurements.
Original languageEnglish
Title of host publicationASME International Mechanical Engineering Congress and R&D Expo, United States, Washington
Publication statusPublished - 2003


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