| 摘要 |
<p>PROBLEM TO BE SOLVED: To determine the occurrence of a collision at a timing earlier than fall or overturn of an occupant of a vehicle.SOLUTION: An occupant crash protector 12 worn by an occupant of a vehicle includes: an air bag; an acceleration sensor 15 for detecting acceleration of three axes, that is an axis in the longitudinal direction, an axis in the horizontal direction orthogonal to the longitudinal direction, and an axis in the vertical direction of the occupant; an angular velocity sensor 16 for detecting the angular velocity around the horizontal axis; and a control part 13 for outputting a signal for deploying the air bag on detecting a collision of the vehicle. The control part 13 calculates the acceleration which the occupant receives from the triaxial acceleration input from the acceleration sensor 15, and the angular velocity input from the angular velocity sensor 16, and determines the occurrence of a collision of the vehicle when the acceleration of the occupant exceeds a predetermined threshold.</p> |
