Route calculation method for a vehicle navigation system
AssigneeHonda Motor Co., Ltd.
InventorsRobert Uyeki, Kazuya Tamura, Eric Shigeru Ohki, Maja Kurciska
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AssigneeHonda Motor Co., Ltd.
InventorsRobert Uyeki, Kazuya Tamura, Eric Shigeru Ohki, Maja Kurciska
Estimating the term…
Traffic information, including flow information and incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle may be used in route calculation by a navigation device. The navigation device may recalculate a route based on anticipated user error. Alternatively, the navigation device may recalculate a route using received traffic information triggered by the receipt of a traffic information update, or triggered by the passage of an amount of time. The broadcast rate of traffic information updates may vary temporally (providing more frequent updates during peak commute times) or geographically (providing more frequent updates to metropolitan areas with increased traffic information needs). If route calculation is triggered by an elapsed amount of time, the amount of time may vary to be shorter during peak commute times. Additional route calculation techniques allow the incorporation of historical traffic information or the use of the most recent traffic information if incomplete traffic information is available. Still further route calculation techniques may calculate a best route by avoiding zigzagging or evaluating an assigned cost of a potential route.
In a vehicle navigation system having an output screen, a method for calculating at least one travel route to a destination, comprising the steps of:
In a vehicle navigation system having an output screen, a method for calculating travel routes to a destination, comprising the steps of:
A vehicle navigation system for a vehicle, comprising:
Dependencies are inferred from the claim text.
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Specially adapted for specific applications: dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or…
Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions: output thereof on a road map
Where the transmitted instructions are used to compute a route: where the route is computed offboard
Where different aspects are considered when computing the route: where the complete route is dynamically recomputed based on new data
About 2 years of term left · ends 4 Nov 2028 (estimated)
1. Field of the Invention
The present invention relates generally to a system for providing information between vehicles and a remote location and for providing traffic management and vehicle navigation information between a vehicle and the remote location, and more specifically to a system and method for calculating routes by a traffic management system.
2. Description of Related Art
FIG. 1a is a schematic diagram of a first embodiment of a system pursuant to aspects of the invention;
FIG. 1b is a schematic diagram of a broadcast communication network pursuant to aspects of the invention;
FIG. 1c is a schematic diagram of a navigation device in communication with a mobile unit pursuant to aspects of the invention;
The present invention is directed to a system and method for facilitating the exchange of traffic information between a remote location and a vehicle. In particular, the present invention is directed to a system and method that includes a vehicle that exchanges traffic information with the remote location by way of one or more communication networks.
FIG. 1a shows a first embodiment of a system for facilitating the exchange of information between a remote location 10 and a vehicle 12 pursuant to aspects of the invention. The vehicle 12 includes a navigation device 14. Referring now also to
FIG. 1c, the navigation device 14 may include an output unit 21, a receiver unit 22, an input unit 23, a position detection unit 25, a navigation memory unit 30, a navigation processor unit 26, and an RF transceiver unit 52 that are all in electrical communication with one another. The navigation memory unit 30 includes at least a portion of a user profile and, in some embodiments, includes the entire user profile. In addition, the navigation memory unit 30 includes a road map database portion and, in some embodiments, includes a disk reading unit for reading road map information not built into the navigation device 14. As is provided in greater detail below, the user profile and/or the road map database stored in the memory 30 may be updated in the vehicle by way of the input unit 23, which includes at least one of a keyboard, a touch sensitive display, and a microphone. The user profile and/or the road map database may also be updated by way of information received through the receiver unit 22 and/or the RF transceiver unit 52.