| 摘要 |
PROBLEM TO BE SOLVED: To provide a more comfortable and safe drive by induction guide that avoids right turn as much as possible and takes priority of left turn. SOLUTION: When there is a right turn point for right turn as a calculation result of a course, a left-turn priority course calculating section 46 (left-turn priority course calculating means) performs a plurality of left turns in a predetermined limit distance from the point, and thus calculates the left-turn priority course where arrival at the right turn point by rectilinear propagation or arrival at the point on the course passing the right turn point. A left-turn distance setting section 45 (left-turn distance setting means) receives from the operation section a set input of the predetermined limit distance as the total distance per series of left-turn priority course. COPYRIGHT: (C)2006,JPO&NCIPI |
