High-precision steering effort sensor: The CLS
With the innovative CLSx steering effort sensor, the original steering wheel of your vehicle becomes a high-precision instrument that measures steering torque, angle, steering velocity and acceleration in x, y and z directions. Whether passenger car, truck or construction machinery, the ultra-slim sensor can be placed between the steering column and steering wheel in just a few simple steps. The functionality of the original steering wheel including airbag is completely preserved.
Important features at a glance:
Detects torque, angle and rotational velocity
Acceleration measurement in X, Y & Z directions
World’s smallest and lightest sensor
Optimized for autonomous driving tests
Quick and easy installation on almost all vehicles
Ideal for the following standards:
ISO 4138 Steady-state circular driving
ISO 7975 Braking in a turn
ISO 7401 Lateral transient response test
ISO 3888 Severe lane-change maneuver
ISO 7401 Sinus weave test
ISO 17288 Free-steer behavior
ECE-R 79 Steering equipment
NHTSA Fishhook test (tipping stability)
Technical Data – CLSx
Steering torque
Parameter Value Remarks Measuring principle temperature compensated strain gauge application Measurement range ±100 Nm others upon request Accuracy 0.1% FS Combined (gain error and non-linearity) Bandwidth 0 to 800 Hz sampling rate 5 kHz Steering angle
Parameter Value Remarks Measuring principle incremental angle encoder Measurement range ±1440 ° Accuracy 0.045 ° Bandwidth 0 to 800 Hz sampling rate 5 kHz Steering velocity (angular velocity)
Parameter Value Remarks Measuring principle calculated from angle Measurement range ±2048 °/s Bandwidth 0 to 800 Hz sampling rate 5 kHz Vibration and acceleration
Parameter Value Remarks Vibration in the center of the steering column, measurement range up to 5 g in x, y and z direction Rotational acceleration measurement range ±10000 °/s2 General data
Parameter Value Remarks Sensor height approx. 30 mm without adapter Sensor weight approx. 0.6 kg without adapter Overload >100% of the measurement range Mech. breaking torque >500 Nm Adaption special adaption sets for any car or truck manufacturer available Moment of inertia
SensorSteering wheel or column adapter
approx. 3000 g cm2 typ. approx. 500 g cm2
Working temperature -20°C to +80°C Control unit
Parameter Value Remarks Supply 9 to 36 V DC CAN output freely configurable Analog output freely configurable, max. ±10 V Auto zero with push-button for torque and angle at
the panel or by remote control