The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2003
Filed:
Sep. 27, 2001
Naohisa Uehara, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A motor vehicle position recognizing system which can ensure high accuracy for an arithmetic processing for determining a vehicle position in a transverse direction of a road by minimizing error involved in the arithmetic processing by suppressing occurrence of discontinuity even when a magnetic sensor whose output is destined for the arithmetic processing is changed over to another one. The system includes magnetic markers ( ) laid on a road surface at predetermined locations for forming a magnetic field zone, a plurality of vehicle-onboard magnetic sensors ( ) for detecting the intensity of the magnetic field zone formed by the magnetic markers ( ), a vehicle position arithmetic means ( A) for arithmetically determining a position (Phr) of the motor vehicle in the transverse direction as a vehicle position on the basis of the field intensities detected by the magnetic sensors ( ), and a vehicle position correcting means ( ) for correcting an arithmetically determined value of the position of the motor vehicle as determined by the vehicle position arithmetic means ( A).