| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a shock relief system from being activated by a slight collision, and to achieve the early shut-off of a power supply to a heavy electric component in a vehicle at a vehicle collision. <P>SOLUTION: A device for protecting a person on board includes an early shut-off heavy electric component 3, a secondary battery 5 serving as a power source, a shock relief system 6 such as an airbag system, a G sensor 1 serving as an acceleration detecting means, and a control unit 2. The control unit 2 uses an acceleration detected valueαfrom the G sensor 1, a first thresholdα1 for activating the shock relief system 6, and a second thresholdα2 which is smaller than the first thresholdα1 to determine a magnitude of the collision. Furthermore, when the acceleration detected valueαis determined to be higher than the second thresholdα2 and lower than the first thresholdα1, the power supply from the secondary battery 5 to the early shut-off heavy electric component 3 is shut off without activating the shock relief system 6. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
