PROBLEM TO BE SOLVED: To provide a seat belt winding device that can apply to an occupant an adequate mounting feeling of a seat belt which can be brought by a new seat belt, regardless of degrees of deterioration with time of a winding spring and a seat belt.SOLUTION: The seat belt winding device comprises: a winding spring which energizes a spool in a direction in which the spool winds up a seat belt; and an electric power motor that generates belt-winding torque for rotating he spool in the direction in which the spool winds up the seat belt. The device, when a specific condition is satisfied after the seat belt is mounted on an occupant, executes fitting control by which the electric power motor is temporarily driven to generate the belt winding torque so as to make the spool to wind up the seat belt. Further, the device acquires a deterioration indicator value which becomes larger as deterioration of the winding spring and the seat belt progresses with time, which increases at least either of the maximum value of the belt winding torque and/or seat belt winding time when the deterioration indicator value is a first value, more than when the deterioration value is a second value smaller than the first value.SELECTED DRAWING: Figure 4

    【課題】巻取りバネ及びシートベルトの経時的な劣化の程度に依らず、新品である場合に得られるシートベルトの適度な装着感を乗員に付与する。【解決手段】スプールがシートベルトを巻き取る方向にスプールを付勢する巻取りバネと、スプールがシートベルトを巻き取る方向にスプールを回転させるためのベルト巻取りトルクを発生する電動モータを備える。シートベルトが装着された後に特定条件が成立したとき、電動モータを一時的に駆動してベルト巻取りトルクを発生させることにより、シートベルトをスプールに巻き取らせるフィッティング制御を実行する。更に、巻取りバネ及びシートベルトの経時的な劣化が進むほど大きくなる劣化指標値を取得し、劣化指標値が第1の値である場合、劣化指標値が「第1の値よりも小さい第2の値」である場合と比べて、ベルト巻取りトルクの最大値及び/又はシートベルト巻取り時間の少なくとも一方を増大させる。【選択図】図4


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    Title :

    SEAT BELT WINDING DEVICE


    Additional title:

    シートベルト巻取り装置


    Contributors:

    Publication date :

    2018-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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