Tuning of CVT for an Electric Vehicle

International Journal of Mechanical Engineering
© 2017 by SSRG - IJME Journal
Volume 4 Issue 9
Year of Publication : 2017
Authors : Karan Nigudkar, Pranay Shah
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How to Cite?

Karan Nigudkar, Pranay Shah, "Tuning of CVT for an Electric Vehicle," SSRG International Journal of Mechanical Engineering, vol. 4,  no. 9, pp. 1-5, 2017. Crossref, https://doi.org/10.14445/23488360/IJME-V4I9P101

Abstract:

The current market highlights the need for better performance cars in limited budget. We aim to incorporate a CVT and to tune it well to increase the efficiency of the vehicle without any drastic surge in the price. A Continuous Variable Transmission (CVT) also called as step less transmission is an automatic transmission that can shift seamlessly through a continuous range of effective gear ratios. The purpose of using a CVT is to enable the motor to run at its most optimum speed for a range of output speeds. This paper strives to study and analyze the effect of variation in different parameters such as mass of flyweights, stiffness of springs, mass of clutch shoes of centrifugal clutch on the performance of the CVT. For the above mentioned purpose a set of springs of different stiffness, a set of flyweights having different mass were incorporated. The data regarding engagement RPM, adjustment of drive ratios with change of load and speed was recorded and analyzed. The results revealed that there was a positive correlation between stiffness of springs and the torque carrying capacity which impacted the vehicle’s performance to improve thus creating an energy efficient system that have better ability to sustain for more time at the average speed. The paper examines the research carried out on the performance of the vehicle by varying various factors that could affect the efficiency and on the basis of the findings we conclude that the addition of a well tuned CVT can highly improve the performance of Electric Vehicles thus achieving the goal of the industry as well as end users.

Keywords:

Continuous Variable Transmission, spring stiffness, tuning, optimize, torque, speed

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