Tesla Model 3 sees automaker’s first use of permanent magnet electric motors

March 12, 2018

Tesla Model 3 sees automaker’s first use of permanent magnet electric motor

According to Tesla, the Model 3 is “a smaller, simpler and more affordable electric car” than the company’s previous models (Courtesy Tesla)


Tesla’s Model 3 electric vehicle will be the company’s first car to incorporate a permanent magnet electric motor, reports Reuters. The automaker has previously relied on AC induction motors, such as those used in its Model S and Model X.

Neodymium permanent magnets are widely used in electric and hybrid automotives and are said to be lighter, stronger and more efficient than induction motors in general. The research group IMARC estimates that the market for neodymium-iron-boron magnet used in Tesla’s motors is now worth more than $11.3 billion, with demand rising at a compound annual growth rate of 8.5% between 2010 and 2017.

Speaking to Charged Electric Vehicles Magazine during a panel at the Coil Winding, Insulation & Electrical Manufacturing Exhibition (CWIEME) in Chicago, USA, in late 2017, Konstantinos Laskaris, Tesla’s Chief Motor Designer, stated, “It’s well known that permanent magnet machines have the benefit of pre-excitation from the magnets, and therefore you have some efficiency benefit for that. Induction machines have perfect flux regulation and therefore you can optimise your efficiency. Both make sense for variable-speed drive single-gear transmission as the drive units of the cars.”

“So, as you know, our Model 3 has a permanent magnet machine now. This is because for the specification of the performance and efficiency, the permanent magnet machine better solved our cost minimisation function, and it was optimal for the range and performance target. Quantitatively, the difference is what drives the future of the machine, and it’s a trade-off between motor cost, range and battery cost that is determining which technology will be used in the future.”

According to Tesla, the Model 3 is “a smaller, simpler and more affordable electric car” than the company’s previous models, and has been designed and built as the world’s first “mass-market electric vehicle.” It is expected to begin shipping in Europe in late 2018, and is currently on display at the Geneva Auto Show, Geneva, Switzerland, March 8-18.


Latest Industry News

Download the latest issue of PM Review

Our latest issue is now available to download in PDF format, free of charge.

As well as an extensive Powder Metallurgy industry news section, this 88-page issue includes the following exclusive articles and reports:

  • Arcast: A decade of innovation and a bright future for metal powder atomisation
  • Particle characterisation of metal powders with dynamic image analysis and laser diffraction
  • JPMA Awards 2020: A showcase of innovation in PM for new and existing applications
  • Understanding how the surface area of metal powders influences Additive Manufacturing
  • Euro PM2020: PM functional materials in energy management and magnetic applications
  • More information

Industry News


Sign up to our free e-newsletter, sent weekly to industry professionals around the world. We'll also let you know each time a new issue of PM Review magazine is available.

Subscribe for a FREE digital magazine

PM Review is the leading international magazine for the Powder Metallurgy industry.
Published four times a year, it is available as a free download or through a print subscription

Connect with us

Powder Metallurgy: The original net-shape production process

Powder Metallurgy components are relied upon by a wide variety of manufacturing industries, from automotive to power tools, household appliances, chemical engineering, filtration and more.

The main reason for the technology’s success is its cost-effectiveness at producing high volumes of net-shape components, combined with its ability to allow the manufacture of products that, because of the production processes, simply cannot be manufactured by other methods.

To discover more about how the technology has revolutionised component production, browse our Introduction to Powder Metallurgy.

Latest industry news

Copy link
Powered by Social Snap