SKF
Steering Encoder Units
SKF steering encoder units are designed for electric power steering (EPS) systems in passenger cars and light commercial vehicles. They provide precise angular position measurement of the steering input shaft, which is critical for steering assistance and active safety functions such as lane keeping and stability control. The unit integrates a high-resolution magnetic encoder ring and sensor within a compact angular contact ball bearing. This integration saves space, reduces weight, and increases reliability by protecting the sensing element inside the sealed bearing. The encoder signal, delivered via a digital interface, supports the vehicle's electronic control unit in calculating steering torque and position, enabling smooth and responsive steering control.
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High-Resolution Angle Feedback
Supports advanced driver assistance features.
Integrated Bearing Package
Reduces steering column length and weight.
Automotive Reliability
Sealed encoder withstands temperature, vibration, and humidity.
Plug-and-Play Interface
Standard communication protocol for ECU integration.
Improved Steering Feel
Accurate position enables refined controller response.
Role in Electric Power Steering (EPS) Systems
EPS replaces hydraulic assist with an electric motor. Precise rotor angle feedback from the steering encoder unit is vital for synchronizing motor commutation with driver torque, delivering seamless assistance and enabling energy savings of up to 90% compared to traditional hydraulic systems.
Future Relevance in Autonomous Driving
Accurate and reliable steering angle information is fundamental for automated lane centering and emergency steering. SKF’s encoder units provide the deterministic feedback needed for safety-certified autonomous driving architecture.