Obstacle discrimination device for vehicle

Details Obstacle discrimination device for vehicle Obstacle discrimination device for vehicle

2005-10-18

2008-09-30

Hofsass, Jeff (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Of collision or contact with external object

C701S045000, C180S274000, C180S275000, C280S735000

Reexamination Certificate

active

07429916

ABSTRACT:
An obstacle discrimination device for a vehicle includes an absorber arranged at a front surface of a bumper reinforce member in a bumper cover of the vehicle, a pressure detection unit, a vehicle velocity detection unit and an obstacle judgment unit. The absorber has therein at least one chamber, in which fluid is sealed. A pressure in the chamber which varies due to a collision of an obstacle with a bumper of the vehicle is detected by the pressure detection unit. A pedestrian is distinguished according to whether or nor the pressure exceeds a threshold value related to a velocity of the vehicle detected by the vehicle velocity detection unit.

REFERENCES:
patent: 4215878 (1980-08-01), Hirbod
patent: 6510914 (2003-01-01), Ishizaki et al.
patent: 6561301 (2003-05-01), Hattori et al.
patent: 6784792 (2004-08-01), Mattes et al.
patent: 6948750 (2005-09-01), Federspiel et al.
patent: 2005/0096816 (2005-05-01), Takafuji et al.
patent: A-11-28994 (1999-02-01), None

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