| 摘要 |
The accident data recorder is intended to short term recording and storage of data and events relating to a motor vehicle accident and comprises for example detectors of the number of revolutions of the wheels to determine the length of the travel and the vehicle speed. In addition to those detectors (25), acceleration sensors (26) are provided which are capacitively operated and of which the output signals are continuously recorded in a non-volatile store (22) together with the output signals of the wheel revolution number detectors as well as other data relating to the operation of the vehicle. To this effect, there is provided an addressing logic which operates according to a closed count loop by returning to the initial address when the final address is reached and which stores data on previously stored data. Such cyclic recording is interrupted upon the arrival of a triggering signal determined by an accident and causing the freezing of the last stored data including data recorded during a predetermined time interval after the signal. |
