Navigation system having means for determining a route with optimized consumption
First Claim
1. A navigation system for a motor vehicle, comprising:
- an input unit operatively arranged for receiving a user input defining a maximum travel time for a journey from a first location to a second location;
a position-determining unit for determining a current position of the vehicle;
an output unit for outputting travel instructions which are matched to a current position of the vehicle; and
a central processing unit connected to said input unit, said position-determining unit and said output unit and operatively arranged for calculating at least a first route between the first location and the second location by reference to map data containing information for determining a predicted fuel consumption for the route, such that the maximum travel time is not exceeded and the anticipated fuel consumption is minimized.
2 Assignments
0 Petitions
Accused Products
Abstract
A navigation system of a motor vehicle has an input unit, a position-determining unit, a central processor unit (CPU) for calculating a route between a first and a second location by reference to map data which contains information for determining a predicted fuel consumption for the route, and an output unit for outputting travel instructions which are matched with the current position of the vehicle. A maximum travel time for a journey from the first location to the second location is predefined by a user using the input unit and the route is determined such that the predefined maximum travel time is not exceeded, and the anticipated fuel consumption is minimized.
61 Citations
13 Claims
-
1. A navigation system for a motor vehicle, comprising:
-
an input unit operatively arranged for receiving a user input defining a maximum travel time for a journey from a first location to a second location;
a position-determining unit for determining a current position of the vehicle;
an output unit for outputting travel instructions which are matched to a current position of the vehicle; and
a central processing unit connected to said input unit, said position-determining unit and said output unit and operatively arranged for calculating at least a first route between the first location and the second location by reference to map data containing information for determining a predicted fuel consumption for the route, such that the maximum travel time is not exceeded and the anticipated fuel consumption is minimized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for determining a route between a starting point and a destination by reference to road map data which includes road classes, topological properties and speed restrictions, comprising the steps of:
-
calculating routes between the starting point and the destination whose anticipated travel time is shorter than a predefined maximum travel time value;
determining a fuel consumption for the calculated routes; and
selecting the route with the lowest fuel consumption. - View Dependent Claims (10, 11, 12, 13)
-
Specification