Featured Nissan motor analysis Munro

Nissan is producing a motor using an electro-magnet rotor which eliminates the need for permanent magnets:

The same as running an alternator as a motor, this is a brilliant solution as it also solves the problem of back-EMF that requires 'field weakening' in traditional motors. There is no free lunch as the rotor coils require power but the dynamic range of efficient power production is well worth it.

Bob Wilson