| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that, when a route guidance operation by a voice is decided on the basis of a distance up to a turning point at a predetermined reference speed, the timing of the guidance operation by the voice is deviated from an actual timing depending on the running speed of a running vehicle. SOLUTION: According to the running speed of an own vehicle detected by a vehicle speed sensor 9, a control means 10 guides a route by a voice guidance means 6 at a long distance interval at a time when the running speed of the own vehicle is faster than the predetermined reference speed regarding a running road and at a short distance interval at a time when the running speed is slower than the reference speed. |
