We’ve written extensively about the impact of magnets on the transportation industry, specifically cars. From brake systems and brake lights to sensors and motors, magnets are used in varied capacities throughout even the average vehicle. One system we haven’t covered is the steering system or electric power steering system (EPS). These days, the majority of commercial cars have one as it impacts safety, comfort, and stability. An EPS system uses an electric motor, which in turn uses permanent magnets, to operate.

Electric Power Steering System (EPS) 

Power steering used to be hydraulic, meaning it drained power from the engine even when the steering operation was occurring. By switching to electricity, energy consumption can be reduced. In compact cars, some EPS use ferrite magnets; however, in larger cars, brushless motors typically use rare earth magnets. While the structural components of different cars aren’t standard, the composition of the steering system is typically the same.   An EPS is composed of: 
  • Sensor
  • Electronic control unit
  • Permanent magnet motor (usually neodymium)
  • Reducer
  • Mechanical steering gear
  • Battery power supply
  A power steering system also includes a rack, a pinion assembly, and magnets. In the assembly, the pinion teeth are engaged with the teeth of the rack. Permanent magnets or electromagnets are engaged with the rack and the rack tube. By controlling the current flowing through some of those magnets, steering assistance is provided via maglev force.

Apex Magnets 

Apex Magnets offers high-quality neodymium magnets, perfect for use in the automotive industry. Visit our website today to view our products. We also offer custom magnets to match your business needs. All you have to do is fill out our online form and we will provide you with a quote for FREE within 1-2 business days.