Seat belt usage indicating system

摘要

An occupant safety protection system (8) capable of sensing the misuse of a safety belt system (10). The invention includes: a shoulder belt portion (13), a field generator means (243) for generating a detection field (202), a disturbance tag means (250) attached to the shoulder belt portion (13) and a tag detection circuit means (19) which determines seat belt misuse and sends an output indicative thereof. When the seat belt system is being properly used the disturbance tag (250) does not disturb the detection field. Conversely, when the seat belt system is being improperly used the disturbance tag disturbs the detection field. The tag detection circuit sends an output indication (245) corresponding to the state of the seat belt system use.