| 摘要 |
PROBLEM TO BE SOLVED: To provide a position-grasping system for vehicle for improving the accuracy of an integrated travel distance and precisely grasping the position of a vehicle. SOLUTION: A plurality of position markers 3 are arranged on a road R. A position-grasping device 10 is loaded on the vehicle 1, and the travel distance between the markers 3-a and 3-b is operated by the estimation travel distance operation means 12 of the position-grasping device 10. An error (ΔL), between the operation value (LA) and the measured distance L of the respective position markers, is operated by a travel distance error operation means 13, and the travel distance from the position marker 3-a is obtained based on the error and the present position of the vehicle 1 is grasped accurately.
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