Navigation method for a navigation system based on maps determines an actual position via satellite navigation by using a map regarding tolerance areas at possible locations on traffic routes

摘要

At a specific moment (SP) (t=0), receipt for a global positioning satellite signal stops, so that a route is now defined via a tracking sensor, i.e. a tacho-signal and a route covered (RC). Using a road direction and the RC continuously defines a new position on a current route. At the SP this position is allocated an error probability. Roundabouts (3) occur e.g. at a time point (t=1).