Powertrain Electrification Electric Motors

High Voltage Rare Earth Free Electric Motor

Last update: 05 Sep. 2023

What is a Rare Earth Free motor?

Rare earth elements (REE) such as Neodymium and Dysprosium are generally used in permanent magnet motors, in electric vehicles. Valeo developed an EV motor without rare earth element in it.

In 2022, Valeo launched the developpement of the next generation of Electrically Excited Synchronous Motor (EESM) with hairpin stator. This is an electric motor without magnet and thus without rare earth.

Valeo's electric motors without rare earth (magnet)

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What are High Voltage Rare Earth Free Electric Motor benefits?

Rare-Earth free
Carbon footprint reduced by 30% at motor level vs. PMSM (Permanent Magnet Synchronous Motor)
High efficiency especially on highway driving cycle perfect for long-range electric vehicle
Power density improved by 30% vs. current EESM thanks to hairpin technology
Drag-loss free: extension to new portfolio segment
System reduced cost (battery)
No rare earth volatility risk

High Voltage Rare Earth Free Electric Motor specifications

Rotor field controllable
Combined cooling: water/oil cooling for highest continuous power
Diameter 210 mm motor available with length scaling option for cost and packaging optimization