| 摘要 |
The invention concerns a method for automatically triggering an emergency signal from a vehicle to an assistance unit, said vehicle being equipped with an least an impact sensor, a permanent electric power supply and a electric power supply following ignition, which consists in detecting an accident by permanently analysing from the time of ignition several electric signals representing in particular the permanent electric power supply level (S>p<) and that of the electric power supply following ignition (S>c<), the level of the signals (S>e<) and (S>s<) at the impact sensor terminals and the vehicle moving speed (S>v<). When the permanent electric power supply is lost, or the vehicle moving speed (S>v<) is higher than a threshold (V>s<), and the four other signals pass from level 1 to level 0, an emergency call is automatically triggered.
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