POSITION SENSING SYSTEM FOR INTELLIGENT VEHICLE GUIDANCE
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Mar 3, 2014
filing date -
Mar 3, 2014
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Abandoned
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Abstract
A method for determining a position deviation of an object with respect to a magnetic marker. The method senses at least two axial field strength components of the magnetic field emitted from the magnetic marker with each of at least two magnetic field sensors mounted on the object. For each axial direction, the method computes a difference in the axial field strength components sensed by the two sensors. The method then determines the position deviation of the object from the magnetic marker as a function of the two differences (i.e., one difference for each axial direction). The method can be used by an intelligent lateral control system to provide lateral deviation of a mobile object, such as a vehicle, from a desired path, and the intelligent lateral control determines and applies the desired steering control to the mobile object so as to guide it along a desired path automatically.
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