Method for transferring routes between navigational devices

• US 20060190164A1
• Filed: 02/23/2005
• Published: 08/24/2006
• Est. Priority Date: 02/23/2005
• Status: Active Grant

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors Corporation (General Motors Company)
• Inventors: Glaza, Mark J.
• Granted Patent: US 7,499,798 B2
• Time in Patent Office: Days
• US Class Current: 701/202
• CPC Class Codes: G01C 21/34 Route searching; Route guidance

Abstract

A method for navigation includes providing a route, including at least first and second route portions, at a telematics unit and determining a route status. The method further sends the second route portion to a mobile communication device based on the route status.

Claims

1. A method for navigation, the method comprising:

providing a route, including at least first and second route portions, at a telematics unit;

determining a route status; and

sending the second route portion to a mobile communication device based on the route status.

2. The method of claim 1, wherein the determining a route status comprises estimating a waypoint time, wherein the waypoint time is the time until arrival at an intermediate location.

3. The method of claim 2, wherein the sending of the second route portion comprises sending the second route portion to the mobile communication device when the waypoint time is substantially equal to a second route portion transfer time.

4. The method of claim 1, wherein determining a route status comprises estimating a waypoint distance.

5. The method of claim 4, wherein the waypoint distance is the distance until arrival at an intermediate location.

6. The method of claim 1, wherein determining a route status comprises estimating a destination distance.

7. The method of claim 6 wherein the destination distance is a distance to the end of the second route portion.

8. The method of claim 1 wherein sending the second route portion to a mobile communication device based on the route status comprises sending the second route portion via a wireless connection.

9. A computer usable medium including computer readable code for for navigation, the code comprising:

computer readable code for providing a route, including at least first and second route portions, at a telematics unit;

computer readable code for determining a route status; and

computer readable code for sending the second route portion to a mobile communication device based on the route status.

10. The computer usable medium of claim 9, wherein computer readable code for determining a route status comprises computer readable code for estimating a waypoint time, wherein the waypoint time is the time until arrival at an intermediate location.

11. The computer usable medium of claim 10, wherein the computer readable code for sending of the second route portion comprises computer readable code for sending the second route portion to the mobile communication device when the waypoint time is substantially equal to a second route portion transfer time.

12. The computer usable medium of claim 9, wherein computer readable code for determining a route status comprises computer readable code for estimating a waypoint distance.

13. The computer usable medium of claim 12, wherein the waypoint distance is the distance until arrival at an intermediate location.

14. The computer usable medium of claim 9, wherein computer readable code for determining a route status comprises computer readable code for estimating a destination distance.

15. The computer usable medium of claim 14 wherein the destination distance is a distance to the end of the second route portion.

16. The computer usable medium of claim 9, wherein computer readable code for sending the second route portion to a mobile communication device based on the route status comprises computer readable code for sending the second route portion via a wireless connection

17. A system for navigation, the system comprising:

means for providing a route, including at least first and second route portions, at a telematics unit;

means for determining a route status; and

means for sending the second route portion to a mobile communication device based on the route status.