How It Works

When the vehicle accelerates, the spring-mounted hanging weight is also accelerated. The force needed to achieve this is generated by mechanical tension in the piezoelectric material. This results in a shift in the electric charge. This charge shift is picked up by electrodes and processed as an electric signal. The yaw rate is derived from the difference between the two acceleration signals.

The second DSC sensor redundantly registers the signals for lateral acceleration and yaw rate. The fact that two DSC sensors are used means that plausibility can be monitored. The two DSC sensors are triggered (excited) by the DSC control unit every 10 milliseconds. Each time they are triggered, the two DSC sensors send their signals to the F-CAN.