Vehicular pedestrian collision detection sensor
AssigneeDenso Corporation
InventorTetsuya Takafuji
Life of this patent
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Abstract
A vehicular pedestrian collision detection sensor detects a collision with a pedestrian which allows high-accuracy recognition of a collision with a pedestrian. A large number of load detection cells are arranged in a lateral direction (width direction) of the front side of a vehicle. The total collision load is calculated with respect to a cell group composed of some of the load detection cells which are adjacent to each other, wherein the cell group has a width generally equal to a pedestrian width. Based on the total collision load, an amount correlated to the mass of a pedestrian is calculated. When the amount correlated to the pedestrian mass is within a preset range, a collision with a pedestrian is recognized or determined.
Claims9
A pedestrian collision detection sensor for detecting a collision between a vehicle and a pedestrian, comprising:
- a plurality of load detection cells arranged with predetermined pitches in a lateral direction of a front side of the vehicle to output individual load signals in accordance with collision loads;
- and
- a controller having a pedestrian determination unit configured to
- calculate a total sum of collision loads to a load detection cell group or an amount correlated to the total sum based on collision signals outputted from the load detection cell group, the load detection cell group including load detection cells, which are included in the plurality of load detection cells and arranged within a predetermined width, and
- determine whether or not a collision object is a pedestrian based on the calculated total sum of the collision loads to the load detection cell group or the amount correlated to the total sum.
Dependencies are inferred from the claim text.