Range anxiety remains a top concern of electric vehicle owners. EV makers around the world are trying to address this concern. But if they increase the size of the battery pack, it will also increase the weight of the vehicle thus creating more problems than it solves.
The range of an electric vehicle depends partly on its weight. So, the only other option is to reduce the weight of the electric motors.
If the electric motor can be shrunken in size, it can reduce the overall weight of electric vehicles (EVs) and therefore increase the range of an EV with the same battery pack.
Now, a group of researchers from the University of New South Wales (UNSW) Sydney has built a high-speed motor that can increase the range of electric vehicles while simultaneously reducing the amount of rare earth materials needed.
The magnetically driven new electric motor developed by the researchers can clock 100,000 revolutions per minute. This high-power density was achieved with the new design inspired by the shape and engineering properties of the Gyopo rail bridge, the longest railroad bridge in South Korea.
The world’s fastest ever built motor with commercialized lamination materials
The new Interior Permanent Magnet Synchronous Machine Motor (IPMSM) uses magnets embedded within its rotors to create strong torque for an extended speed range. This motor significantly reduces the use of rare earth materials and delivers improved power density.
