The Accident Data Recorder is a black box for the vehicle which can be compared to the flight recorder used in air planes It records the transversal an longitudinal acceleration as well the vehicle rotations and road speed. It further knows when and how Ion g ignition, light, indicators and brakes have been activated.

In the event of an accident. this data is recorded with high precision 30 seconds before and 15 seconds after the accident. Accidentrecognition is fully automatic. The device can be installed into any vehicle.

Experiences gained by VDO Kienzle show that the system has a positive effect on accident prevention and provides the accident expen with objective data on the course of an accident.