Monitoring mechanism of obstacle detecting apparatus for vehicle

Details Monitoring mechanism of obstacle detecting apparatus for vehicle Monitoring mechanism of obstacle detecting apparatus for vehicle

1999-03-16

2000-10-03

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, 340903, G01S 1393

Patent

active

061279641

ABSTRACT:
A monitoring mechanism of an obstacle detecting apparatus for a vehicle can be applied to various kinds of obstacle detecting apparatuses and is preferable for judging whether good or bad. Accordingly, the obstacle detecting apparatus for a vehicle having an outgoing device (51) for outgoing a medium (Lo) to a traveling direction of a vehicle (B), an incoming device (52) for incoming a reflected medium (Li) from an obstacle (D) and a calculating device (53) for defining an existence of the obstacle (D) on the basis of a difference between the outgoing and incoming mediums (Lo, Li) is provided with a monitoring mechanism (6) comprising a rotating device (61) integrally supporting the outgoing and incoming devices (51, 52) in a freely rotatable manner, a reflecting device (62) reflecting the outgoing medium (Lo) to the incoming device when a rotating angle (.theta.) of the rotating device is within a predetermined angle range (.theta.1 to .theta.2), a rotating angle detecting device (63) of the rotating device, and a judging device (65) comparing at least one of the incoming medium (Li) and a distances (E) calculated by the calculating device (53) with standards (L1 to L2, E1 to E2) corresponding to the at least one when the rotating angle (.theta.) from the rotating angle detecting device is within a predetermined angle range (.theta.1 to .theta.2) and further judging an abnormality in the obstacle detecting apparatus.

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