Modifications to continuously variable transmissions (CVT) are presented in order to improve overall performance in recreational vehicles. A computer controlled CVT would eliminate performance-inhibiting compromises currently imposed by mechanical sensors and actuators. The authors propose a computer controlled CVT to obtain improved performance. This paper considers a snowmobile modification that is a stepping-stone towards a fully computer controlled CVT. External force was applied with a pneumatic cylinder and four bar linkage to the driven pulley to vary sheave pressure and override the natural shift pattern. An external force of 431 N increased track speed 59% during hill climb testing. Ultimately, a microprocessor would use input signals from track speed, engine speed, and throttle position to shift the CVT to obtain maximum performance.
Improved Recreational Vehicle Continuously Variable Transmission
Sae Technical Papers
Small Engine Technology Conference & Exposition ; 2004
2004-09-27
Conference paper
English
Imporved Recreational Vehicle Continuously Variable Transmission
British Library Conference Proceedings | 2004
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