DESIGN AND DEVELOPMENT OF A TRANSMISSION SYSTEM FOR AN ALL TERRAIN VEHICLE

The main function of a transmission system is to transfer the required torque and power generated by the engine to the wheels as and when required by the driver. In automobiles this is done with the help of a gearbox and a final drive alternative. The objective of this work is to design and develop a transmission system which is reliable, safe and cost effective. It should be able to transmit sufficient power and torque to generate the required traction at the wheels at any particular rpm. As the vehicle under consideration is an All-Terrain Vehicle (ATV), which is subjected to varying and rugged road conditions, the power transmission should be constant and uninterrupted. This is done with the help of a Continuously Variable Transmission (CVT) and a customized two stage speed reducer of the required reduction ratio.