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Method and device for guiding vehicles as a function of the traffic situation

  • US 5,818,356 A
  • Filed: 10/25/1996
  • Issued: 10/06/1998
  • Est. Priority Date: 10/25/1995
  • Status: Expired due to Term
First Claim
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1. A method for guiding a vehicle as a function of a traffic situation, in which traffic situation data used for guiding the vehicle are made available in a control center and are used to determine optimum routes, the method comprising the steps of:

  • transmitting necessary vehicle-specific starting data to said control center;

    determining an optimum route (R2) as a function of said starting data, said traffic situation data and stored road network data;

    determining intermediate destinations (Zz1, Zz2, . . . ), located on said optimum route, using a computer in said control center such that each section (W1, W2, . . . ) of said optimum route located between every two successive ones of said intermediate destinations can be reproduced unambiguously by a vehicle-end navigation device located in the vehicle using a traffic situation-independent route search method;

    transmitting said intermediate destination data from said control center to said vehicle-end navigation device;

    successively determining with the vehicle-end navigation device successive ones of said sections (W1, W2, . . . ) of said optimum route (R2) between every two successive ones of said intermediate destinations by using said traffic situation-independent route search method, wherein a respective intermediate destination (S, Zz1, Zz2, . . . ) is used as a starting point and a subsequent intermediate destination (Zz1, Zz2, . . . Z) as an end point of a respective route section; and

    generating associated guidance instructions by said vehicle-end navigation device.

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