PERFORMANCE INVESTIGATION OF A CONTROLLED DIFFERENTIAL CONTINUOUSLY VARIABLE DRIVE

Now a day�s development trends in car industry and mobile machines are driven by universal concerns on energy limitations and greenhouse gases reduction,more energy efficient and environmentally friendly vehicles will be needed. A s the increasing concerns in the impact of vehicle emissions of carbon dioxides and Nitrogen oxides on the biosphere combined with today�s shortage fuel,hence need to find alternate fuel solutions o r develop the transmission system in such a way tha t lower consumption and lower emission should takes p lace. Continuously variable drive is the type of automati c transmission that allows selection of infinite number of transmission ratios within the finite ran ge i.e. between minimum and maximum value. Continuously variable drive is 34.91% more efficien t than that of manual transmission. In order to achieve emission reduction and fuel economy needs t o improve fuel efficiency. Continuously variable drive can be improved by coupling differen tial gear assembly to one of variable speed drives;we can increase the speed variation range a t the expense of the horse power range. Numerous combinations of the variables are possible.

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