System to determine the path of a vehicle
First Claim
1. A system for determining the most likely driving path of a vehicle moving along a roadway, comprising:
- a map database;
a map matching module which determines the vehicle'"'"'s position on a map associated with the map database; and
a look ahead module which evaluates the map for a curve ahead of the vehicle, the look ahead module determining a list of candidates of probable driving paths through the curve, each candidate being associated with one or more parameters having a weight determined by a respective cost function, the look ahead module analyzing the weights to determine the most likely path of the vehicle through the curve.
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Accused Products
Abstract
The present invention provides a system and method of selecting a most likely path of a vehicle from a list of candidate paths. If only one candidate path exists, that path is identified as the most likely path. For multiple candidate paths, cost functions determine the weight of various parameters associated with each candidate. The parameters may include lane information, the vehicle speed, the vehicle travel direction, the lateral speed of the vehicle, the state of various signals, such as the turn signals. From the various weights determined by the cost functions, the candidate path with the highest confidence level is determined to be the most likely path.
40 Citations
24 Claims
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1. A system for determining the most likely driving path of a vehicle moving along a roadway, comprising:
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a map database; a map matching module which determines the vehicle'"'"'s position on a map associated with the map database; and a look ahead module which evaluates the map for a curve ahead of the vehicle, the look ahead module determining a list of candidates of probable driving paths through the curve, each candidate being associated with one or more parameters having a weight determined by a respective cost function, the look ahead module analyzing the weights to determine the most likely path of the vehicle through the curve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for determining the most likely driving path of a vehicle moving along a roadway, comprising:
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determining the vehicle'"'"'s position on a map associated with a map database; evaluating the map for a curve ahead of the vehicle; determining a list of candidates of probable driving paths through the curve, each candidate being associated with one or more parameters having a weight determined by a respective cost function; and analyzing the weights to determine the most likely path of the vehicle through the curve. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification