| 摘要 |
An automobile seat belt system ensures that the belts of occupied seats are properly worn. The system compares the amount of belt withdrawn from an inertia reel with the position of the seat and the angle of the seat back, and if the amount of belt is outside the normal range or the angle of the belt is abnormal in respect to the driver's or any occupied passenger seat, a warning device is actuated when the vehicle speed exceeds a predetermined low speed. The system may also lock any fastened seat belts when the transmission is placed in gear and when the vehicle speed exceeds the predetermined low speed.
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