초록 ▼

A wearing condition of a seat belt assembly is detected while considering a difference in a preferred mode of the seat belt assembly between the presence and the absence of a personnel who is seated upon a seat. In the prior art arrangement, in which a mechanical coupling of a seat belt assembly is

A wearing condition of a seat belt assembly is detected while considering a difference in a preferred mode of the seat belt assembly between the presence and the absence of a personnel who is seated upon a seat. In the prior art arrangement, in which a mechanical coupling of a seat belt assembly is considered alone, an alarm may be given off in the absence of the coupling. This may result in giving off an alarm for a vacant seat on which no personnel is seated. Such inconvenience is completely eliminated in accordance with the invention in which a decision differs between the presence or absence of a seating. The relationship between a webbing and a personnel sitting on the seat is analyzed, whereby an anomaly in the wearing condition such as sitting over the webbing after coupling the seat belt assembly can be detected.

대표청구항 ▼

In a vehicle including a seat and a seat belt, an apparatus for detecting whether an occupant seated on said seat is wearing said seat belt, said apparatus comprising: a seat belt assembly including said belt which may be disposed around said occupant; a belt electrode positioned along at least a po

In a vehicle including a seat and a seat belt, an apparatus for detecting whether an occupant seated on said seat is wearing said seat belt, said apparatus comprising: a seat belt assembly including said belt which may be disposed around said occupant; a belt electrode positioned along at least a portion of said belt; a detecting electrode positioned so as to produce an electric field between said belt electrode and said detecting electrode and passing through at least part of said occupant when said belt is disposed around said occupant; capacitance detecting means for detecting the capacitance formed between said belt electrode and said detecting electrode; and monitoring means responsive to changes in the detected capacitance for monitoring the detected capacitance to determine whether said belt is disposed around said occupant.