METHODS AND SYSTEMS FOR GENERATING A HORIZON FOR USE IN AN ADVANCED DRIVER ASSISTANCE SYSTEM (ADAS)
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Accused Products
Abstract
A method of generating a horizon for use by an ADAS of a vehicle involves using digital location-based data, driver data and/or vehicle data to determine the likelihood that different outgoing paths are taken at a decision point along a currently traversed road segment, and deriving a probability that each path may be taken. The probability may be based on one or more of: an angle of the path relative to the incoming path, the road class of the path, a speed profile of the path, historical paths taken by vehicles at the decision point, and historical paths taken at the decision point by the individual driver or vehicle.
3 Citations
39 Claims
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1-25. -25. (canceled)
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26. A method of generating a horizon for use in an Advanced Driver Assistance System (ADAS) of a vehicle using stored digital map data, wherein the digital map data comprises a plurality of segments representative of roads of a road network, each segment being associated with data indicative of one or more attributes of the road represented by the segment, wherein one of the attributes is speed profile data that is indicative of an average speed of travel for traversing the road during one or more time periods, said method comprising:
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determining data indicative of a relative probability that each of a plurality of possible outgoing paths associated with a decision point of the road network will be taken by the vehicle using at least the average speed for the time period appropriate for the time at which the horizon is generated from the speed profile data associated with the segments defining the respective outgoing paths; determining one or more predicted paths that the vehicle is expected to travel in the immediate future at the decision point using the data indicative of the relative probability; and generating the horizon using the one or more predicted paths. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to perform a method for generating a horizon for use in an Advanced Driver Assistance System (ADAS) of a vehicle using stored digital map data, wherein the digital map data comprises a plurality of segments representative of roads of a road network, each segment being associated with data indicative of one or more attributes of the road represented by the segment, wherein one of the attributes is speed profile data that is indicative of an average speed of travel for traversing the road during one or more time periods, said method comprising:
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determining data indicative of a relative probability that each of a plurality of possible outgoing paths associated with a decision point of the road network will be taken by the vehicle using at least the average speed for the time period appropriate for the time at which the horizon is generated from the speed profile data associated with the segments defining the respective outgoing paths; determining one or more predicted paths that the vehicle is expected to travel in the immediate future at the decision point using the data indicative of the relative probability; and generating the horizon using the one or more predicted paths.
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36. A system for generating a horizon for use in an Advanced Driver Assistance System (ADAS) of a vehicle using stored digital map data, wherein the digital map data comprises a plurality of segments representative of roads of a road network, each segment being associated with data indicative of one or more attributes of the road represented by the segment, wherein one of the attributes is speed profile data that is indicative of an average speed of travel for traversing the road during one or more time periods, said system comprising:
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means for determining data indicative of a relative probability that each of a plurality of possible outgoing paths associated with a decision point of the road network will be taken by the vehicle using at least the average speed for the time period appropriate for the time at which the horizon is generated from the speed profile data associated with the segments defining the respective outgoing paths; means for determining one or more predicted paths that the vehicle will be expected to travel in the immediate future at the decision point using the data indicative of the relative probability; and means for generating the horizon using the one or more predicted paths. - View Dependent Claims (37, 38, 39)
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Specification