Model-Based Estimation of Transmission Gear Ratio for Driving Energy Consumption of an EV

This paper presents a numerical study of the effect transmission configuration on energy consumption an electric vehicle. The first part this is related to vehicle simulation model that takes into consideration resistances such as aerodynamic, rolling and inertial resistance well traction force. was then validated by means acceleration time, from 0 100 km/h in case single-speed gearbox. Vehicle power demand electrical were evaluated over three standardized test cycles: WLTC-Class 3, NEDC FTP-75. For each cycle, two cases studied: dual-speed Very different observed between cycles terms maximum average driving power. most power-demanding cycle WLTC, while less demanding. However, specific per kilometer very similar for FTP-75, it respectively accounted 0.118/0.116 kWh/km 0.117/0.115 kWh/km. WLTC led higher 0.127/0.124 A gearbox better efficiency, within range 1.7% 2.4%. value obtained highly dynamic WLTC.