METHOD OF TRACKING VEHICLE POSITION AND AZIMUTH USING DEAD RECKONING NAVIGATION, AND TRACKING DEVICE OF EXECUTING METHOD

摘要

PROBLEM TO BE SOLVED: To improve accuracy of a method for recording a vehicle position and azimuth in accordance with a preamble described in claim 1.SOLUTION: A method for tracking a vehicle position (x) and azimuth (H) using a dead reckoning navigation on the basis of speed of front wheels (3a) and (3b), calculates an approximate steering angle δand an exact steering angle δthat are calculated on the basis of the speed v and azimuth change h of the front wheels (3a) and (3b); when deviation from the exact steering angle δis small, tracks the vehicle position (x)) and the azimuth (H) using the approximate steering angle δthat is calculated by a simple formula; and when the deviation is large, tracks the vehicle position (x) and the azimuth (H) using the exact steering angle δ.SELECTED DRAWING: Figure 1