Vehicle navigation apparatus with new route replanning apparatus
First Claim
1. Vehicle navigation apparatus, comprising:
- initial route means for calculating for a vehicle an initial route to a desired destination, said initial route comprising an ordered connected plurality of road segments selected from road segments defined in a road map database, said road segments in said initial route ordered so as to define a plurality of vehicle maneuvers for traveling from one road segment in said initial route to a connected road segment in said initial route;
means for providing sequential initial route guidance instructions in accordance with said initial route to enable said vehicle to traverse said initial route;
means for providing a user initiated can'"'"'t do-reroute signal indicative of a vehicle user determining unsuitability of following said initial route guidance instructions;
new route means for automatically, in response to said can'"'"'t do-reroute signal, identifying for exclusion at least one of said maneuvers between road segments in said initial route, and then calculating a new route to said destination, via said road segments in said road map data base, by excluding from said new route said at least one identified maneuver without excluding from consideration any individual read segments in said initial route; and
means for providing new route guidance instructions to enable said vehicle to traverse said new route to said destination.
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Accused Products
Abstract
Vehicle navigation apparatus (10) calculates an initial route to a destination (52) via connected road segments (55, 59) defined in a road map data base. In response to a can'"'"'t do-reroute signal, indicative of the vehicle user determining unsuitability of following the initial route guidance instructions, a new route (55, 60, 61, 62, 59) to the destination is provided. Automatically excluded from the,new route is a maneuver (ordered road segment pair (55-59)) and/or a road segment of the initial route. This prevents the new route from including an initial guidance instruction which was determined as unsuitable. Also, calculated routes are provided by calculating the route from a predicated position of the vehicle at a subsequent time based on the vehicle'"'"'s current position, direction and rate of travel. This ensures that when the route is provided at the subsequent time, the vehicle will not have passed the first maneuver to be implemented in the calculated route.
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Citations
17 Claims
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1. Vehicle navigation apparatus, comprising:
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initial route means for calculating for a vehicle an initial route to a desired destination, said initial route comprising an ordered connected plurality of road segments selected from road segments defined in a road map database, said road segments in said initial route ordered so as to define a plurality of vehicle maneuvers for traveling from one road segment in said initial route to a connected road segment in said initial route; means for providing sequential initial route guidance instructions in accordance with said initial route to enable said vehicle to traverse said initial route; means for providing a user initiated can'"'"'t do-reroute signal indicative of a vehicle user determining unsuitability of following said initial route guidance instructions; new route means for automatically, in response to said can'"'"'t do-reroute signal, identifying for exclusion at least one of said maneuvers between road segments in said initial route, and then calculating a new route to said destination, via said road segments in said road map data base, by excluding from said new route said at least one identified maneuver without excluding from consideration any individual read segments in said initial route; and means for providing new route guidance instructions to enable said vehicle to traverse said new route to said destination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Vehicle navigation apparatus, comprising:
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initial route means for calculating for a vehicle an initial route to a desired destination, said initial route comprising an ordered connected plurality of road segments selected from road segments defined in road map data base; means for providing sequential initial route guidance instructions in accordance with said initial route to enable said vehicle to traverse said initial route; means for providing a user initiated can'"'"'t do-reroute signal indicative of a vehicle user determining unsuitability of following said initial route guidance instructions; new route means for automatically, in response to said can'"'"'t do-reroute signal, identifying for exclusion at least one ordered road segment pair in said initial route, said at least one identified ordered road segment pair including at least the next ordered road segment pair in said initial route to be traversed by said vehicle, and then calculating a new route to said destination, via said road segments in said road map data base, by excluding from said new route said at least one identified ordered road segment pair without excluding from consideration any individual road segments in said initial route; and means for providing new route guidance instructions to enable said vehicle to traverse said new route to said destination. - View Dependent Claims (14, 15, 16, 17)
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Specification