Seat belt unit, comprising mechanism for blocking motion of belt and releasing belt in relation to situation

摘要

When an impact is anticipated the drive (17) of the restraining device (16) is rotated in its normal direction in order to wind up the seat belt (11), additionally blocking the belt (11) when the vehicle is accelerated above a predetermined level. If a collision is avoided and the adaptive cruise control (19), the vehicle stability assisting (20), the electric power steering (21), the supplementary restraint system (22) and the automatic transmission (23) have registered a reduction in acceleration, the motor (17) is again rotated in the normal direction and the seat belt (11) released.