Standard

SAE 2017-01-9677

Mar 2017 Current

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Language English

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Abstract

A toothed chain continuously variable transmission concept is studied. By designing positive engagement at top overdrive ratio, we explored the potential to improve CVT mechanical efficiency. The low cost solution could improve fuel economy by 0.7% in FTP composite cycle. Preliminary multi-body dynamic simulation is also completed using VL-Motion to concept-proof the technical feasibility of disengagement and engagement. To address the noise issue resulted from abandoning the random pitch design in production chain, we proposed an alternate chain pitch sequence but more experimental data is required to validate the design.

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Standard from SAE International
Published: March 14 2017
Document type: IS
Pages
ISBN:

Publisher: SAE International
Distributor: SAE International

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Abstract

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