Obstacle recognition system for vehicle

Details Obstacle recognition system for vehicle Obstacle recognition system for vehicle

1996-12-24

1998-08-25

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Radar mounted on and controls land vehicle

342 71, 342106, 342107, 342115, 340903, 340435, 340436, G01S 1396

Patent

active

057987270

ABSTRACT:
In an obstacle recognition system for a vehicle, transmission wave is irradiated per given angle for recognizing an obstacle ahead of the subject vehicle based on angle/distance data obtained from received reflected wave. A position of the obstacle is estimated based on a previously recognized position of the obstacle. The estimated position of the obstacle and an actually recognized position of the obstacle are compared so as to determine whether the obstacle currently recognized is identical with the obstacle previously recognized. Relative acceleration is derived for the obstacle which has been determined plural times to be identical with the previously recognized obstacle. When the derived relative acceleration is outside a given range, the corresponding obstacle is excluded from objects of further obstacle recognition.

REFERENCES:
patent: 5291207 (1994-03-01), Kikuchi et al.
patent: 5612699 (1997-03-01), Yamada
patent: 5629669 (1997-05-01), Asano et al.
patent: 5631639 (1997-05-01), Hibino et al.

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