Method for determination of fuel usage for a vehicle in a vehicle navigation system
First Claim
Patent Images
1. A method for determining fuel usage for a vehicle in a vehicle navigation system comprising the steps ofentering a destination in the vehicle navigation system;
- calculating a first route to reach the destination;
identifying a fuel filling station closest to the destination;
calculating approximate fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
comparing the calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination with a quantity of fuel remaining in the vehicle; and
displaying a message that the destination and the fuel filling station closest to the destination cannot be reached when the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination.
12 Assignments
0 Petitions
Accused Products
Abstract
A method for determining optimal fuel usage in a vehicle navigation system and a warning system for alerting a driver when there is insufficient fuel to reach a desired destination. In addition, provision is made to calculate fuel usage and to alert the driver when there is insufficient fuel to reach a fuel filling station on a return trip from the desired destination.
-
Citations
19 Claims
-
1. A method for determining fuel usage for a vehicle in a vehicle navigation system comprising the steps of
entering a destination in the vehicle navigation system; -
calculating a first route to reach the destination;
identifying a fuel filling station closest to the destination;
calculating approximate fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
comparing the calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination with a quantity of fuel remaining in the vehicle; and
displaying a message that the destination and the fuel filling station closest to the destination cannot be reached when the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for determining fuel usage for a vehicle in a vehicle navigation system comprising the steps of:
-
entering a destination in the vehicle navigation system;
calculating a first route to reach the destination;
identifying a fuel filling station closest to the destination;
calculating approximate fuel usage required for the vehicle to reach the destination by the first route and then to reach the fuel filling station closest to the destination;
comparing the calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination with a quantity of fuel remaining in the vehicle;
displaying a message that the destination and the fuel filling station closest to the destination cannot be reached when the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route and the fuel filling station closest to the destination; and
displaying a message that the destination can be reached when the fuel remaining is more than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for determining fuel usage for a vehicle in a vehicle navigation system comprising the steps of:
-
entering a destination in the vehicle navigation system;
calculating a first route to reach the destination;
identifying a fuel filling station closest to the destination;
calculating approximate fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
comparing the calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination with a quantity of fuel remaining in the vehicle;
displaying a message that the destination and the fuel filling station closest to the destination cannot be reached when the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
displaying a message that the destination can be reached when the fuel remaining is more than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
calculating at least one alternate route to save fuel to reach the destination if the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
selecting a second route from the at least one alternate route if the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
calculating approximate fuel usage required for the vehicle to reach the destination by the second route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination if the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the first route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
comparing the calculated fuel usage required for the vehicle to reach the destination by the second route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination with a quantity of fuel remaining in the vehicle calculating a route to a fuel filling station nearest a current position of the vehicle if the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the second route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination;
calculating a route from the fuel filling station nearest the current position of the vehicle to the destination if the fuel remaining is less than said calculated fuel usage required for the vehicle to reach the destination by the second route plus fuel usage to reach the fuel filling station closest to the destination after reaching the destination; and
displaying at least one of the first route, the second route, the route to a fuel filling station nearest a current position of the vehicle, and a route from the destination to the fuel filling station closest to the destination.
-
Specification