Method and system to determine the position of a land vehicle du

Details Method and system to determine the position of a land vehicle du Method and system to determine the position of a land vehicle du

1988-05-02

1991-08-13

Chin, Gary

Boots, shoes, and leggings

364454, 318587, 342451, G06F 1550

Patent

active

050401220

ABSTRACT:
To supplement an electronic navigation system, for example associated with a locating map storing possible paths of a vehicle, two path sensors are provided, one (10) evaluating vehicle operating data and distance traveled, and the other (12) evaluating position of the vehicle with respect to the geomagnetic field. In accordance with the invention, and in order to eliminate drift errors of the vehicle operating sensor (10) and disturbances of the magnetic field sensed by the magnetic field sensor, the output signals from the vehicle operating sensor are differentiated to eliminate long-term drift, and the output signals from the field sensor are integrated to eliminate short disturbances, both the differentiation as well as the integration steps being carried out with respect to distance traveled and not with respect to time. The respectively differentiated and integrated signals are then combined in an adder (28) for application to a course or navigation computer of standard construction.

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Derwent WPI abstract of DE-OS 2927325 (patented Apr. 14, 1988), Szczesny, assigned Teldix GmbH (subsidiary of Robert Bosch GmbH).

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