To provide a self-propelled vehicle with high safety in traveling and favorable handiness for a user, needing no travel path for traveling, no redoing of construction even in a case of changing courses and no construction cost nor trouble of construction.
The self-propelled vehicle is characterized by that it can automatically travel even without a guidepath wire or the like by calculating a position of a vehicle body 1 by a radio wave from an artificial satellite 13, collating the present position with a prestored travel path storing means 39, determining an advancing direction, steering dirigible road wheels 2, controlling driving of driving wheels 3 and controlling it so it travels along a travel path set in the travel path storing means 39, and it temporarily stops and changes over to a manual traveling mode when a position signal from a receiver 36 is not inputted in a microcomputer 17.
YAMAGUCHI SETSUJI
YAMAGUCHI SEIJI
MITSUEDA HIROBUMI
MORIYAMA KOJI
MATSUOKA KAZUHIRO
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