Combined torque and angle sensor for electric power assisted steering applications
Based on the company’s Hall Effect (HE) non-clockspring torque sensor technology, the combined sensor uses driver input to measure the steering torque while simultaneously converting the rotation speed and direction of the steering wheel. The torque portion of the sensor is designed specifically for EPAS, and the steering angle signal can be used in a variety of automotive systems including Electronic Stability Control (ESC), Advanced Front Lighting Systems (AFLS), Navigation, and Assisted Parking Systems.
Several variations of this combined torque and angle sensor are available including dual and single channel options on the torque portion depending on redundancy requirements. The steering angle sensor can support incremental or absolute measurement. The device is suitable for column or rack mounted EPAS and has been designed to sustain temperatures from -40 to +140°C. The combined sensor provides CAN steering sensor output in addition to an analog torque signal. The torque sensor output can also be configured to support PAS4, PSI5 and PWM outputs.
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