China EV Pro
ManufacturersBrandsModelsNewsCompare
Sign In
China EV Pro

Your professional guide to Chinese electric vehicles and automotive innovation.

Explore

  • Manufacturers
  • Brands
  • Models
  • Compare

Resources

  • News
  • Buying Guides
  • Technology
  • Market Analysis

Company

  • About Us
  • Contact
  • Privacy Policy
  • Terms of Service

© 2025 Tech Frontier Co., Limited. All rights reserved.

Back to Technology/Home/Technology/Permanent Magnet Motor
Intermediate·Motors & Drivetrains
5 min read

Permanent Magnet Motor

Efficient electric motor type using permanent magnets in the rotor

EV Expert Team
November 4, 2025

Permanent Magnet Synchronous Motors (PMSM) use permanent magnets in the rotor to create a magnetic field. They are the most common type of motor in modern electric vehicles due to their high efficiency and power density.

Advantages

  • High efficiency (typically 95-97%)
  • Compact size and lightweight
  • Excellent torque at low speeds
  • Lower heat generation
  • Better range efficiency

Considerations

Permanent magnet motors require rare earth materials like neodymium, which can be expensive and have supply chain concerns. They also have limited field weakening capability at very high speeds.

Common Applications

Used in most Chinese EVs, Tesla Model 3/Y, and many other modern EVs. Particularly popular for rear-wheel drive configurations and efficiency-focused vehicles.

Tags:
motor
permanent magnet
PMSM
efficiency
drivetrain