Road curvature estimating apparatus

Details Road curvature estimating apparatus Road curvature estimating apparatus

1998-01-26

2000-10-17

Assouad, Patrick

Data processing: measuring, calibrating, or testing

Measurement system

Dimensional determination

701 28, 701 41, G06F 1900

Patent

active

061345091

ABSTRACT:
A road curvature estimating apparatus for a vehicle includes a vehicle attitude detector which detects an attitude of the vehicle with respect to a road, a front-and-rear wheel steer-angle detector, a vehicle speed detector and a road curvature calculator. The road curvature calculator calculates a curvature of a road ahead of the vehicle on the basis of the measured vehicle attitude, the measured vehicle speed and the measured steer angles of the front and rear wheels by means of a state estimation of modern control theory. A controller executes a control of an automatic steering mechanism on the basis of the road curvature calculated.

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