Vorrichtung und Verfahren zur Erzeugung eines Auslosekriteriums für ein Aufprallschutzsystem eines Fahrzeugs

摘要

The invention relates to a device for generating an activation criterion (6) for an impact protection system of a vehicle provided with an impact sensor unit (2) comprising a vehicle outer skin part (2.1), which can change its position relative to a vehicle chassis (4) due to a force acting upon the vehicle outer skin part (2.1), and comprising at least two sensors (2.2), which are provided for detecting a force acting upon the vehicle outer skin part (2.1) and which each furnish at least one sensor output signal (2.3). The inventive device is also provided with a processing unit (3) for evaluating the at least two sensor output signals (2.3). The processing unit (2.3) determines a first partial force from a first of the at least two sensor output signals (2.3), at least one second partial force from at least one second of the at least two sensor output signals (2.3), and the location of the acting force based on the determined partial forces while using a first computing rule. According thereto, the processing unit (3) generates an activation criterion (6) for the impact protection system. For example, secondary impact protection systems, which are provided on the vehicle and which are used for the subsequent impact of the pedestrian with the roadway can be controlled in a manner that prevents the pedestrian from directing hitting his head.