Patent ID: 6618653
Filing Date: 2003-09-09
Classification: G01C

Abstract:
A motor vehicle position recognizing system, comprising:signal zone forming means laid on a road surface at least at one predetermined location for forming a signal zone of a predetermined signal strength; a plurality of signal strength detecting means mounted on a motor vehicle traveling on said road surface and disposed at a plurality of positions along a transverse direction substantially orthogonal to a traveling direction of said motor vehicle for detecting the signal strength of said signal zone; vehicle position arithmetic means for arithmetically determining a position of said motor vehicle in a transverse direction as a vehicle position on the basis of the signal strength detected by at least one of said plural signal strength detecting means; detecting means changeover means for changing over from one of the plurality of signal strength detecting means whose output is used for an arithmetic operation for determining said vehicle position depending on a maneuvering of said motor vehicle, to another one of the plurality of signal strength detecting means; and vehicle position correcting means for correcting an arithmetically determined value of the position of said motor vehicle as determined arithmetically by said vehicle position arithmetic means in response to the changeover operation.