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SAE 2017-01-9677 : 2017

Toothed Chain CVT: Opportunities and Challenges

Standard Details

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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General Information

Status : ACTIVE
Standard Type: Main
Document No: SAE 2017-01-9677 : 2017
Document Year: 2017

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SAE 2017-01-9677 : 2017
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