The control unit for ABS, TCS and ESC determine the wheel speed based on signals sent by the Wheel Speed Sensors. This information is used to prevent the wheels from locking and determine when the wheels are spinning, taking appropriate control action to maintain the vehicle's stability and steering responses. In addition, it is possible to capture the rotational direction - this function supports the hill start assist and the park assistance system, e.g. The wheel speed is measured using the anisotropic magneto-resistance (AMR) effect. This method and the integrated information processing feature enable our latest generation of sensors to handle many functions. Development according to ISO 26262 (Functional Safety Management Requirements).Active Wheel Speed Sensors (AWSS) improve existing vehicle functions and make new vehicle functions possible that cannot be achieved with passive ones.
Benefits & Features
- 0km/h traction control, hill start assistance
- 0km/h brake force distribution
- Tow-bar blocking
- Improved navigation by increased accuracy
- Full range ACC
- Pedestrian warning against rolling vehicle
- Self-diagnosis, FSM
- Internal signal monitoring
- True zero speed
- Tire deflation detection (Jitter <0,5%, 3σ)
- Detection of brake pad block by overheat detection
- Detection of bearing / axle failure by airgap monitoring
- Fail safe diagnostics
- Individual cable dressing / application available
- Improved quality assurance during assembly
Technical Information
-40°C up to +170°C
High temperature resistance from
Extended voltage range
Integrated 2,2nF capacitor for robust EMC
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