Sensor system for steering wheel of motor vehicle, has sensor unit arranged at steering wheel rim for detecting effect of acceleration on rim, where output signal is delivered by sensor unit, when effect of acceleration exceeds preset value

摘要

The system has a sensor unit (1) arranged at a steering wheel rim (10) for detecting an effect of acceleration (B) on the rim. The sensor unit delivers an output signal (5), when the effect of the acceleration exceeds a pre-determined value. The output signal actuates an airbag or other passive or active safety systems. The steering wheel rim has an electrical outer conductor (1A) and an electrical inner conductor (1B) for forming a coaxial arrangement.