Navigation system with route optimization mechanism and method of operation thereof

1. A method of operation of a navigation system comprising:

generating a route, including a travel time and a travel distance, based on balancing factors, associated with a current situation limitation, according to a priority of the factors;

determining a context, including a keyword, for traversing the route;

determining a fuel usage factor based on the context for evaluating the route;

calculating a fuel estimate, with a control unit, for the route based on the fuel usage factor, wherein the fuel estimate represents a normalized value for comparison of different routes; and

determining a fuel-optimization route based on the fuel estimate for displaying on a device.

2. The method as claimed in claim 1 further comprising:

determining a hurried-driving mode based on the context; and

wherein:

determining the fuel usage factor includes determining the fuel usage factor including the hurried-driving mode evaluating the fuel-optimization-route.

3. The method as claimed in claim 1 further comprising:

determining a load based on the context; and

wherein:

determining the fuel usage factor includes determining the fuel usage factor including the load for evaluating the fuel-optimization route.

4. The method as claimed in claim 1 further comprising:

determining a privilege-lane mode based on the context; and

wherein:

determining the fuel usage factor includes determining the fuel usage factor including the privilege-lane mode for evaluating the route.

5. The method as claimed in claim 1 further comprising:

determining a vehicle model based on the context; and

wherein:

determining the fuel usage factor includes determining the fuel usage factor including the vehicle model for evaluating the route.

6. The method as claimed in claim 1 wherein determining the fuel-optimization route based on the fuel estimate includes balancing the fuel usage factor and the travel time, the travel distance, or a combination thereof based on the context.

7. The method as claimed in claim 1 further comprising:

determining a hurried-driving mode based on the context; and

wherein:

determining the fuel-optimization route includes balancing the fuel usage factor including the hurried-driving mode for evaluating the fuel-optimization-route.

8. The method as claimed in claim 1 further comprising:

determining a load based on the context; and

wherein:

determining the fuel-optimization route includes balancing the fuel usage factor including the load for evaluating the fuel-optimization route.

9. The method as claimed in claim 1 further comprising:

determining a privilege-lane mode based on the context; and

wherein:

determining the fuel-optimization route includes balancing the fuel usage factor including the privilege-lane mode for evaluating the fuel-optimization route.

10. The method as claimed in claim 1 further comprising:

determining a vehicle model based on the context; and

wherein:

determining the fuel-optimization route includes balancing the fuel usage factor including the vehicle model for evaluating the fuel-optimization route.

11. A navigation system comprising:

a control unit for:

generating a route, including a travel time and a travel distance, based on balancing factors, associated with a current situation limitation, according to a priority of the factors;

determining a context, including a keyword, for using the route;

determining a fuel usage factor based on the context for evaluating the route;

calculating a fuel estimate for the route based on the fuel usage factor and the route; and

determining a fuel-optimization route based on the fuel estimate; and

a user interface, coupled to the control unit, for:

displaying the fuel-optimization route on a device.

12. The system as claimed in claim 11 wherein the control unit is for:

determining a hurried-driving mode based on the context; and

determining the fuel usage factor including the hurried-driving mode evaluating the fuel-optimization-route.

13. The system as claimed in claim 11 wherein the control unit is for:

determining a load based on the context; and

determining the fuel usage factor including the load for evaluating the fuel-optimization route.

14. The system as claimed in claim 11 wherein the control unit is for:

determining a privilege-lane mode based on the context; and

determining the fuel usage factor including the privilege-lane mode for evaluating the route.

15. The system as claimed in claim 11 wherein the control unit is for:

determining a vehicle model based on the context; and

determining the fuel usage factor including the vehicle model for evaluating the route.

16. The system as claimed in claim 11 wherein the control unit is for determining the fuel-optimization route based on the fuel estimate and balancing the fuel usage factor and the travel time, the travel distance, or a combination thereof based on the context.

17. The system as claimed in claim 11 wherein the control unit is for:

determining a hurried-driving mode based on the context; and

determining the fuel-optimization route including balancing the fuel usage factor including the hurried-driving mode for evaluating the fuel-optimization-route.

18. The system as claimed in claim 11 wherein the control unit is for:

determining a load based on the context; and

determining the fuel-optimization route including balancing the fuel usage factor including the load for evaluating the fuel-optimization route.

19. The system as claimed in claim 11 wherein the control unit is for:

determining a privilege-lane mode based on the context; and

determining the fuel-optimization route including balancing the fuel usage factor including the privilege-lane mode for evaluating the fuel-optimization route.

20. The system as claimed in claim 11 wherein the control unit is for:

determining a vehicle model based on the context; and

determining the fuel-optimization route including balancing the fuel usage factor including the vehicle model for evaluating the fuel-optimization route.