EV and HEV motor development in TOSHIBA

Hybrid Vehicles (HEVs) and Electric Vehicles (EVs) improve the efficiency of a drive and reduce CO2 emissions by regenerative braking and operating the engine under optimum conditions. It is desirable to decrease the motor size and increase the maximum torque to minimize the driving units. For these purposes, motors employing permanent magnets have been commonly used recently. For HEVs and EVs motors, Toshiba developed the reluctance torque largely employed new motor named PRM, and has been applying to various vehicles. This paper describes the current motor development status in TOSHIBA.