Method for determination of belt extraction length, involves deriving passenger weight from belt extraction length and belt extraction length is determined from belt extraction partial length from starting position to buckle tongue

摘要

The method involves deriving passenger weight from the belt extraction length. The belt extraction length is determined from a belt extraction partial length from a starting position to a buckle tongue (4) and from another belt extraction partial length from the initial position to the buckle tongue. The former belt extraction partial length is determined by a measuring device (1.1) arranged on a belt retractor (1). The latter belt extraction partial length is determined by another measuring device (2.1) arranged on another belt retractor (2).