Science Research Project: Cam-Based Continuously Variable Transmission

My research, conducted in the field of engineering mechanics, was aimed at developing an improvement upon the conventional idea of a continuously variable transmission, or CVT, by implementing a novel reduction method that relied on the mechanical interaction of linkages driven by variably eccentric cams rather than the traditional frictional belted interface, or any other previously attempted method of reduction. CVTs, commonly used in light-duty vehicles, have the potential to drastically increase the performance and efficiency of both gasoline engines and electric motors. With every road-going vehicle contributing to the world's energy consumption, making CVT technology available to the entire market could dramatically reduce our carbon emissions. Unfortunately, CVTs suffer from meager adoption in mid-high load applications due to the torque limitations imposed by a frictionally driven interface. My research has the goal of being able to broaden the practical applications of CVT technology by utilizing an entirely new reduction method, and therefore removing the characteristic torque limitation. Additionally, my research has prioritized achieving a much wider spread of achievable ratios, including a neutral ratio that eliminates the need for clutches and torque converters, further expanding its potential applications.

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PVPSEF Overall Winner, ISEF 3rd Grand Award

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