Method for triggering a safety device, particularly a belt tensioner in a passenger transport

摘要

The safety system includes a safety belt tensioner as well as airbag systems. The acceleration of the vehicle is monitored during a collision. In the event of a rear impact, the control system determines the point at which the seat occupant is pressed most deeply into the seat, before the deceleration process, and activates the safety belt tensioner. This ensures that the occupant is held securely in case a front impact follows e.g. in a multiple vehicle shunt. The acceleration monitors are connected to an integrating control which includes a number of threshold values. If the integrated value exceeds a second threshold, after passing a first threshold, the safety system is activated.