Device for preparing an electric ignition device of a tensioner drive for tightening a seat belt

摘要

A device for making an electric ignition device 3 of a tensioner drive ready for tensioning a seat belt, in particular by retracting the belt buckle, with a first electrical circuit 1, which has the electric ignition device and is closed when the belt buckle is closed, and furthermore monitoring of the operation is thereby achieved that a first measurement signal proportional to the electrical internal resistance R1 of the ignition device 3 can be queried, and with a second circuit 2, which has a measurement resistor R2 and is closed when the belt buckle is opened, wherein a second measurement signal proportional to the measurement resistor R2 can be queried.