Renault has been granted a patent for a wound rotor design for electric machines. The rotor includes a shaft with a slipring, winding wire, and n wound poles wound in ascending order around the main ...

MUNICH, Germany—ZF unveiled an electric motor that does not require magnets or rare earth materials, reducing reliance on mining in countries such as China and cutting manufacturing's carbon footprint ...

This advanced variant of a separately excited synchronous motor is thus an alternative to permanent-magnet synchronous machines (PSM). New Delhi: ZF has developed an electric motor which does not ...