Wet clutches operating under low velocity and continuous sliding are increasingly important in vehicle transmissions. This presents new challenges in improving anti-shudder properties of the clutch system.In order to determine anti-shudder properties the friction-velocity relationship is generally examined. The friction-velocity characteristics are however influenced by the way they are measured, and the measurement methods differ between different standards and OEM approvals, thus making direct comparisons of the anti-shudder requirements difficult.This study investigates how different parameters influence anti-shudder properties. Results show how the obtained friction-velocity characteristics are influenced by the choice of different test procedures and parameters.Methods for presenting the anti-shudder properties are compared for the different cases and a method for evaluation of the properties is suggested. Presenting data using the proposed method makes comparison of results obtained from different measurements easier or even possible.
Measurement and Characterization of Anti-shudder Properties in Wet Clutch Applications
Sae Technical Papers
SAE 2005 World Congress & Exhibition ; 2005
2005-04-11
Aufsatz (Konferenz)
Englisch
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