New motor technology will take electric cars to the next level

2022-06-02 0 By

Carmakers are rushing to release exciting new electric cars, and it’s not just batteries that will become more advanced as the industry evolves.The motors themselves are also improving rapidly.Many industry experts believe the efficiency gains in electric vehicles over the next few years will come through the development of electric motors and power electronics, as well as new and improved batteries.Indeed, carmakers such as Mercedes-Benz and Renault see axial flow as the future of electric motors, just as many expect solid-state technology to be the future of batteries.”Electric motors are not commodities,” Mercedes-Benz said last year.”This is a rapidly evolving technology where innovation and experience will drive performance and differentiation.”The German carmaker has confirmed that AMG brand electric vehicles will use an advanced internally developed axial flow engine.BMW is also working on a new engine.However, there are concerns about electric motors and their use of rare earth metals.As automotive News points out, up to 80 percent of electric car motors today use permanent magnets and metals like it, praseodymium, dysprosium and terbium.The extraction of these materials creates toxic waste, much of which is mined and processed in China.Synchronous motors used by Renault and BMW lack these rare earth materials, but not all carmakers are following suit.For example, the permanent magnet motor used by Volvo XC40 Recharge contains rare earth metals.”Is the reason why we choose this technology of pure efficiency, torque and power density, and because the motor has the best power density, torque density and efficiency, we’ll probably insist on using this technology, at least for the time being,” Volvo electric propulsion solution manager Lutz Stiegler told automotive news.Volkswagen says it has reduced the amount of rare earths it uses in its engines and is working on engines that do not contain the minor metals.The development of electric motors is important and could have a major impact on the work of the automobile industry.Electric cars typically have 50 percent fewer parts and require 30 percent less labor than internal-combustion vehicles.To save jobs, many carmakers are looking to build electric motors in-house.Companies such as Renault are already building their own engines, while Mercedes, Stratys and Volvo are also turning in-house.