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Vehicle guidance system

  • US 5,815,825 A
  • Filed: 02/26/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 03/14/1995
  • Status: Expired due to Fees
First Claim
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1. A vehicle guidance system comprising:

  • (a) a magnetic generator means laid on a road;

    (b) road curve data transmitting means laid on the road to transmit road curve data in the running direction of a vehicle, wherein said road curve data transmitting means are beacons installed at the side of the road, said beacons are installed at a larger pitch than that of said magnetic generator means to transmit not only said data on the road curve but also the data on the position of the magnetic generator means laid within signal transmission areas;

    (c) magnetic detector means mounted on a vehicle to detect magnetism from said magnetic generator means;

    (d) position calculating means mounted on the vehicle to calculate, based on the magnetism detected by said magnetic detector means, the relative position to the road surface;

    (e) receiver means mounted on the vehicle to receive the road curve data from said road curve data transmitting means; and

    (f) control means mounted on the vehicle to control the running of a vehicle, based on the relative position calculated by said position calculator means and the road curve data received by said receiver means.

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