Importance

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Abstract

A correction method is provided for a map-supported navigation system or for a navigation system, in which the position of a motor vehicle found by means of composite navigation is checked and corrected. To correct the fed back position, a range of error is initially established, whose magnitude is determined by the tolerances of the vehicle sensors of the measuring errors of a navigation system. Within this range of error, all paved roads are taken into consideration as a possible vehicle position. A main route on which the vehicle is travelling is selected for the most probable position of the motor vehicle. The other positions continue to be used as parallel routes. If plausibility considerations reveal that a parallel route has a greater probability for the vehicle position than the present main route, then the parallel route is defined as the new main route. With the aid of a hysteresis, the current (actual) vehicle position is prevented from continually jumping back and forth among several streets.

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First Claim