Verfahren zum Betrieb eines Navigationssystems für ein Fahrzeug, insbesondere ein Kraftfahrzeug und Navigationssystem

摘要

The invention relates to a method for operating a navigation system (10) for a vehicle, particularly for a motor vehicle, according to which data referring to the geographical position of the vehicle is established by a positioning system (14) and transmitted to a device (12) for electronic data processing with access to a database (16, 18) and to a digital road map. This data is used to determine the location of the vehicle on the digital road map, and directions to the destination are acoustically and/or visually output to the driver of the vehicle. The invention also relates to a navigation system comprising means for carrying out the method. The invention provides that a current distance (d) of the vehicle from a first decision point (R1) of a route to be taken by the vehicle is permanently verified, and when the vehicle exceeds a minimum distance (dmin) after passing the decision point (R1), a next decision point (A1) is established.