Patent ID: 11965750
Assignee: HONDA MOTOR CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 10:
11. A route guidance method executed by a computer, comprising:
a step of determining a scale of a map to be displayed on a display device; and
a step of displaying the map indicating a guidance route and a current position on the display device at the scale determined in the determination step,
wherein
an intersection zone of a nearest intersection at which it is required to turn along the guidance route is defined between an entrance position and an exit position,
the determination step includes, when the current position reaches a position preceding by a first predetermined distance the entrance position of the nearest intersection, lowering the scale, and further lowering the scale as the current position moves from the position preceding by the first predetermined distance and approaches the entrance position of the nearest intersection, and
the determination step includes, when the current position enters the intersection zone of the nearest intersection from the entrance position and reaches a position of a second predetermined distance from the entrance position of the nearest intersection, the position of the second predetermined distance being within the intersection zone, enlarging the scale, and further enlarging the scale as the current position moves from the position of the second predetermined distance toward the exit position through the intersection zone of the nearest intersection.