Denso recently developed a pedestrian collision detection sensor mounted on a Pop-up Hood. The new sensor can more accurately detect the collision between the vehicle and the pedestrian, making the operation of the pop-up hood more accurate.
The new sensor technology uses a special architecture that can accurately detect the occurrence of a collision when a collision occurs anywhere on the front bumper.
In a conventional pop-up hood, several acceleration sensors are mounted on the front bumper. When a collision occurs, the sensor may not be able to detect the collision, depending on the contact position of the pedestrian with the front bumper.
Denso's new sensor consists of two pressure sensors and a hollow polyethylene shell that matches the internal structure of the housing and the bumper. In a frontal collision, the pressure sensor detects the pressure change in the hollow shell. When the bumper is deformed, the internal pressure increases, so that the pressure sensor can accurately detect where the bump occurred. collision.
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