Steering torque and angle sensor

The combined steering torque and angle sensor from HELLA is integrated in the electromechanical power steering and offers the customer two types of feedback:

Steering torque: The sensor records the torsion bar angle required for the steering movement.
Steering angle: The sensor measures the angle and speed of change in the position of the steering wheel

Both sensor functions are integrated in one sensor and benefit from HELLA’s proprietary CIPOS^® technology.

ADVANTAGES

Modular sensor design for all types of electromechanical power steering (EPS)
System integration capability with HELLA EPS
Diversification of technologies (inductive and Hall)
Absolute angle information for output and input shaft
Ratiometric measuring principle to improve accuracy over total measurement range
Freely programmable torque range with up to +/- 8°
Intelligent software concept for increased safety
No need for additional steering angle sensor in the steering column

TECHNICAL DATA

Mechanical data:
Dimensions:	Typ. Ø 60 mm, R40 mm (with connector)
Installation location:	Integrated in the electromechanical power steering
Operational temperature:	-40 °C to +130 °C
Measuring range:	Max. ± 8° (steering torque) Max. ± 738° (steering angle)

Electrical data:
Voltage supply:	5 V
Power consumption:	< 18 mA per channel for SENT signal
Output signal:	SENT, PWM and SPC (short PWM code) in preparation
Accuracy:	< 0.1° (steering torque) and < 0.7° (steering angle) over lifetime and temperature
Resolution:	< 0.01°
EMC:	Meets all automotive standards requirements

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