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

Claim 11:
12. A navigation system comprising a navigation device and a first display device, the navigation device and the first display device being provided in a vehicle, the navigation device displaying a guidance route to a destination on a map and comprising a processor that includes:
a map display unit configured to display a map on the first display device and display the guidance route and a current position on the map;
a scale determination unit configured to determine a scale of the map to be displayed on the first display device; and
a preceding vehicle information acquisition unit configured to acquire information about a preceding vehicle ahead of the vehicle, the preceding vehicle travelling within a predetermined distance from the current position,
wherein
the scale determination unit lowers the scale as the current position approaches an intersection at which it is required to turn along the guidance route, and enlarges the scale as the current position moves through the intersection,
the scale determination unit holds the scale at a present value while the preceding vehicle is detected,
when an interval distance between the intersection nearest from the current position and a next intersection along the guidance route is less than a threshold distance, the map display unit increases a ratio of an area in which the map is displayed on the first display device, compared to a case in which the interval distance is equal to or longer than the threshold distance,
the map display unit displays the map indicating the guidance route and the current position on a second display device, which is provided on the vehicle and is different from the first display device, at a scale different from that of the map displayed on the first display device.