Modelling and analysis of electric two-wheeler with novel planetary gear box transmission

Abstract

With the world moving towards new sustainable sources of power for automobiles, electric powertrain systems are considered to be suitable. The study focuses on modelling and analysis of electric two-wheelers and designing and analysis of planetary gear box. Based on the analysis and market survey, recommendations for primary components are given. The electric vehicle is analysed using the drive cycle data and modelled using vehicle dynamics equations (Transportation Secure Data Centre). The result of this analysis is the current profile requirement to be fulfilled by the battery pack. The battery modelling and analysis is done based on the equivalent circuit modelling (Jackey et al., 2013; Jackey et al., 2009). The current profiles and battery testing data are used as input to the battery model (Jackey et al., 2009; Hu et al., 2014; Decibels Labs Pvt. Ltd.). SOC and voltage variations were determined from this modelling. The transmission gear ratio and geometry was determined (TM4 Electrodynamics). The dynamic analysis and life cycle estimation of the gear box was done in Ricardo SABR (Ricardo Software, 2020).