Concept and Application
In modern vehicles, the typical EPAS system (Electric Power Assisted Steering) also known as EPS (Electric Power Steering) uses torque and angle sensing assemblies.
These assemblies comprises of :
series of permanent magnets mounted on ferro magnetic yoke. This magnetic yoke is mounted over rotary shaft of steering wheel/column
soft magnetic core mounted on another rotary shaft of steering wheel/column. These components are generally made in 48% Ni Fe material
- Flux collector:
typically made in 80% Ni Fe material, this flux collector component collects flux from the stator and concentrates it to the hall sensor.