| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular collision sensing system capable of estimating a colliding position with a simple configuration.SOLUTION: A vehicular collision sensing system 1 includes a detection tube member 2 (hollow member) that is disposed on a vehicle front side of a bumper reinforcement 11 within a bumper 8 of a vehicle, extends in a vehicle width direction, and has a hollow part 2a formed inside, pressure sensors 3 and 4 that detect pressures in the hollow part 2a, and collision determination means that determines based on a result of pressure detection by the pressure sensors 3 and 4 whether occurrence of collision with the bumper 8 is present. The two pressure sensors 3 and 4 detect pressures at two points that are separated from each other in the vehicle width direction within the hollow part 2a. The vehicle collision sensing system further includes colliding position estimation means that estimates a colliding position on the basis of a phase shift between pressure waves detected by the respective two pressure sensors 3 and 4 along with occurrence of collision with the bumper 8.SELECTED DRAWING: Figure 2 |
