| 摘要 |
PROBLEM TO BE SOLVED: To provide a road repairing automotive working vehicle traveling while automatically following a worker with the movement of the worker. SOLUTION: First to sixth ultrasonic sensors 29A-29F are provided on a fence 28 of a body frame 12. The worker P existing in front of the body frame 12 is irradiated with ultrasonic waves from the respective sensors 29A-29F, and the reflected ultrasonic waves are received. Based on the signals, a control device computes a speed vector and rotation angle speed W between the working vehicle 11 and the worker P. Based on the speed vector V(a) and the rotation angle speed W, the rotation of rear wheels 14A, 14B is controlled so that a distance between the body frame 12 and the worker P is a reference distance and that the worker P is located on a reference bearing H of the body frame 12, thus allowing the follow-up travel of the working vehicle 11 in accordance with the movement of the worker P. COPYRIGHT: (C)2011,JPO&INPIT
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