アクティブシートベルトに関する研究

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タイトル別名
  • Research on Active Seat Belt

抄録

In a car crash, if deformation of an occupant's lung is held to the allowable value, no aftereffect will remain. In order to realize this condition, the seat belt tension must be adjusted instantaneously by a feedback control system. In this study, the seat belt tension control system on the basis of the active shock control system is proposed. And the semi-active control law is derived by the sliding mode control method. An advantage of proposed system is requiring no large power actuator because the seat belt tension can be controlled by a brake mechanism. Next, the effectiveness is confirmed by numerical simulation using general parameters of a human thorax and a passenger car in the case that an automobile collided with a wall at a velocity of 100 km/h. Then, the feasibility is confirmed by the control experiment using the scale model of about 1/10. The relative displacement of the thorax model approaches to the allowable value smoothly along the control reference, and it is settled near the target. As the result, it is clarified that the design technique of the proposed seat belt tension control system is established.

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