| 摘要 |
PROBLEM TO BE SOLVED: To guide a restoration road to a road traveling until now, even when a destination is not set. SOLUTION: A branch determination part 12 determines whether a vehicle goes to a branched way from an imaginary advancing route determined by an imaginary advancing route determining part 11 or not, a route restoration estimation part 13 estimates whether the vehicle is going to be restored to the imaginary advancing route or not, when the vehicle goes branchedly from the imaginary advancing route, a restoration route calculating part 14 calculates a route for restoring the vehicle from the present position to the imaginary advancing route, when the vehicle has the high possibility of the restoration to the imaginary advancing route, and a restoration route drawing part 16 draws a restoration route calculated by the restoration route calculating part 14. A driver is not required to search, by himself or herself, the route for restoration to the road traveling until now, even when the destination is not set, so as to reduce a driving load in the driver. COPYRIGHT: (C)2005,JPO&NCIPI |
