| 摘要 |
PURPOSE: A safety belt assembly and a control method thereof are provided to protect the upper body and lower body of a driver with a proper fixing force because a control unit independently adjusts lengths of upper and lower belt parts with pressure signals sensed by upper and lower pressure sensors. CONSTITUTION: A safety belt assembly comprises a safe belt(10), press sensors, a control unit(100), and first and second actuating units(200,300). The safe belt is composed of an upper belt part(11) and a lower belt part(12). The pressure sensor comprises one or more upper pressure sensors(11-a) and one or more lower pressure sensors(12-a). The upper and lower pressure sensors are respectively joined to the upper and lower belt parts and respectively output pressure signals by sensing pressure. The control unit generates control signals in response to the pressure signals. The first and second actuating units are each length of the upper and lower belt parting response to the control signals.
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