Real-Time Performance and Driveability Analysis of a Clutchless Multi-Speed Gearbox for Battery Electric Vehicle Applications

Due to the electric machine torque bandwidth characteristic and good efficiency throughout its operational points, battery electric vehicles (BEVs) are typically equipped with a single-speed gearbox (SSG). Nevertheless, multi-speed gearboxes have been investigated for BEVs’ powertrain application as multiple gear ratios add the possibility of keeping the EM operating in a better efficiency region, thus reducing vehicle energy consumption and …