| 摘要 |
PROBLEM TO BE SOLVED: To quickly and precisely determine a collision in a vehicle, such as a pole collision.SOLUTION: A determination line 31 for determining a collision is set along a reference waveform 33 on a high pressure side, and is also set to a lower pressure state than a pressure value line 30 for activating an air bag device. For example, before a waveform 35 during a pole collision exceeds the line 30, the waveform 35 exceeds the determination line 31 when a pressure value is &Dgr;P lower, thereby determining the collision.SELECTED DRAWING: Figure 5 |
