Improvements in or relating to a safety arrangement

摘要

A safety arrangement incorporates a seat-belt ( 3 ) to protect an occupant ( 2 ) of a vehicle seat ( 1 ). A control unit ( 11 ) incorporates a calculator ( 18 ) to calculate the weight of the occupant ( 2 ) of the seat occupant, by comparing the force ( 6 ) applied to the seat-belt by the seat occupant with the acceleration ( 14 ) of the compartment. A controller ( 19 ) controls a restraining force applied to the seat occupant by the safety-belt and, possibly, additional force limiting or energy absorbing devices such as an air-bag ( 8 ).