Development of an EV drivetrain for a small car

Electrical vehicles (EVs) have a significant role in reducing transportation emissions and dependence on fossil fuels. This research has focused on energy efficient in-wheel switch reluctance motor (SRM) based drivetrain for a small car. The mechanical design optimisation and performance analyses have been conducted using finite element, virtual and augmented reality methods to develop high power density motor, light weight rim, light weight brake, ride comfortable suspension, and improved vehicle handling. The newly developed in-wheel SRM drivetrain is expected to be 75-80% efficient compared with a conventional EV drivetrain efficiency of 55-60%.