Patent ID: 8874362

Claim:
A method for determining the location of a vehicle using a GPS receiver and a predefinable coordinate system, especially a city map, a map, a nautical chart or the like, said method comprising: determining GPS coordinates by means of the GPS receiver or another appropriate method, for example, Galileo, beacon, etc.; projecting the determined GPS coordinates onto the coordinate system; and correcting the projected coordinates by use of dead reckoning with consideration of the direction change and speed of the vehicle in the coordinate system, wherein correcting the coordinates in the coordinate system occurs with consideration of previously determined or projected coordinates by means of the history, wherein the path of the vehicle with an unsteady path trend is smoothed or corrected according to the history, and wherein the correction of the coordinates in the coordinate system occurs with consideration of the quality of the GPS reception in such a way that the scope of the correction and expense involved with the correction is made dependent on the number of received satellites.