Redundant Wheel Speed Sensor

The dual signal wheel speed sensor is a product providing two electrically isolated wheel speed sensor signals (ISO26262 compliant) to the vehicle systems. Redundant brake systems for Highly Automated Driving applications with L3 or higher driving functions can be achieved.

The redundant wheel speed sensor is a product providing electrically isolated wheel speed sensor signals with redundancy (ISO26262 compliant) to fulfil Highly Automated Driving applications with L3 or higher driving functions.

This product is developed based on an innovative standard carrier with advanced overmolding material to ensure single borehole (≥ Ø10mm) and high robustness.

Benefits & Features

Using established mini speed sensor elements
Flexible reading angles thanks to GMR technologies
ASIL-B(D) according to ISO 26262 compliant
Galvanically isolated wheel speed signals prevent electrical common cause interaction between main and secondary brake systems in highly automated driving systems
Single borehole in Knuckle
No need of changes at already defined borehole size in most cases
Avoidance of complicated cable routings in case of two boreholes

Technical Information

10mm carrier based redundant WSS (single borehole)

2 side by side TLE5047 sensor elements (mini speed packaging) with PWM protocol

AK protocol parts already available in production since July 2020

Sensor with connector or

Possible design options

Sensor with 5.0mm 0.25sqmm high flex 4-wire cable

Possible design options

Sensor with 4.3mm 0.13sqmm standard flex 4-wire cable

Possible design options

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