MULTIPLE ROUTE PRE-CALCULATION AND PRESENTATION FOR A VEHICLE NAVIGATION SYSTEM
First Claim
1. A navigation method for instructing an operator of a vehicle, the method comprising:
- obtaining a destination location;
generating a proposed route to the destination location, the proposed route defined by one or more driver decision points and associated driving maneuvers; and
before the vehicle reaches an approaching driver decision point, pre-calculating an alternate route between the approaching driver decision point and the destination location, wherein the alternate route is different than the proposed route; and
saving the alternate route to obtain a saved alternate route for subsequent activation.
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Accused Products
Abstract
A navigation system and related operating methods are provided for instructing an operator of a vehicle. The navigation system obtains a destination location and generates a proposed route to the destination location. The proposed route is defined by one or more driver decision points and associated driving maneuvers. Before the vehicle reaches an approaching driver decision point, the navigation system pre-calculates alternate routes between the approaching driver decision point and the destination location, and saves the alternate routes for subsequent activation. Pre-calculated alternate routes can also be used to determine and indicate the relative importance of an approaching driving maneuver. The driver can consider the importance of driving maneuvers when deciding whether or not to follow the recommended route.
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Citations
20 Claims
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1. A navigation method for instructing an operator of a vehicle, the method comprising:
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obtaining a destination location; generating a proposed route to the destination location, the proposed route defined by one or more driver decision points and associated driving maneuvers; and before the vehicle reaches an approaching driver decision point, pre-calculating an alternate route between the approaching driver decision point and the destination location, wherein the alternate route is different than the proposed route; and saving the alternate route to obtain a saved alternate route for subsequent activation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A navigation method for instructing an operator of a vehicle, the method comprising:
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generating a proposed route to a destination location; pre-calculating, before the vehicle reaches an approaching driver decision point of the proposed route, an alternate route between the approaching driver decision point and the destination location, wherein the alternate route is different than the proposed route; comparing the proposed route to the alternate route to obtain a route comparison; determining a difference metric value associated with the route comparison; and presenting, to the operator of the vehicle, indicia of the importance of a driving maneuver associated with the approaching driver decision point, wherein the driving maneuver is recommended by the proposed route, and wherein content of the indicia is influenced by the difference metric. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A navigation system for instructing an operator of a vehicle, the system comprising:
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a navigation processor configured to obtain a destination location, and to generate a proposed route to the destination location, the proposed route defined by one or more driver decision points and associated driving maneuvers; and a display element coupled to the navigation processor, the display element configured to render a graphical representation of at least one segment of the proposed route;
wherein;before the vehicle reaches an approaching driver decision point, the navigation processor pre-calculates an alternate route between the approaching driver decision point and the destination location; and the navigation processor activates the alternate route when the vehicle diverts from the proposed route at the approaching driver decision point. - View Dependent Claims (19, 20)
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Specification