Navigation method for vehicles
First Claim
1. Navigation method for vehicles equipped with a composite navigation system which includes a display device for representing a plurality of trip destinations in terms of direction and distance, an input device and a memory, the method comprising the steps of:
- placing destination data into the memory via the input device before the trip is started;
continuously determining the instantaneous location of the vehicle during the trip by means of the composite navigation system and displaying said instantaneous location relative to a selected trip destination;
detecting the deviation (angle and distance) of each instantaneous location determined by the composite navigation system from said selected trip destination upon reaching the actual trip destination;
weighting the detected deviation with factors (K1<
1;
K2<
1), respectively, to form a weighted deviation;
computing correction values (F1, F2) with the composite navigation system utilizing the weighted deviation;
storing the computed correction values (F1, F2);
correcting subsequent data detected by the composite navigation system indicative of the actual position of the vehicle with said correction values (F1, F2); and
,increasing at least on of the weighting factors (K1, K2) by a predetermined percentage of the associated detected deviation after each further trip to a new selected trip destination when a new deviation occurs.
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Abstract
A navigation method for motor vehicles having a display device (10) for representing trip destinations is proposed, in which prior to the beginning of a trip the destination data are input into a memory (12) and during the trip, by means of a composite navigation system (11-14) the instantaneous location of the vehicle with respect to the trip destination is displayed continuously. The navigation method provides that upon attaining the trip destination, the deviations of the input destination from the location, ascertained via the composite navigation, are processed for the calculation of correction values. The correction values are stored in memory, and they serve to update code numbers for distance and direction of the composite navigation system, for subsequent trips.
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Citations
8 Claims
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1. Navigation method for vehicles equipped with a composite navigation system which includes a display device for representing a plurality of trip destinations in terms of direction and distance, an input device and a memory, the method comprising the steps of:
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placing destination data into the memory via the input device before the trip is started; continuously determining the instantaneous location of the vehicle during the trip by means of the composite navigation system and displaying said instantaneous location relative to a selected trip destination; detecting the deviation (angle and distance) of each instantaneous location determined by the composite navigation system from said selected trip destination upon reaching the actual trip destination; weighting the detected deviation with factors (K1<
1;
K2<
1), respectively, to form a weighted deviation;computing correction values (F1, F2) with the composite navigation system utilizing the weighted deviation; storing the computed correction values (F1, F2); correcting subsequent data detected by the composite navigation system indicative of the actual position of the vehicle with said correction values (F1, F2); and
,increasing at least on of the weighting factors (K1, K2) by a predetermined percentage of the associated detected deviation after each further trip to a new selected trip destination when a new deviation occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification