Method for determining physical parameter of vehicle occupant before or during detected collision, involves carrying out slack belt reduction of safety belt of vehicle occupant

摘要

The method involves carrying out the slack belt reduction of a safety belt (3) of the vehicle occupant (2). The vehicle occupant is accelerated in the direction of a vehicle backrest after overcoming the slack belt reduction so that the force effectuates on the vehicle occupant. A physical parameter based on the force or based on the other force emanating from the vehicle occupant and interacting with former force is determined. An independent claim is also included for a device for determining a physical parameter of a vehicle occupant before or during a detected collision.