DRIVER ASSISTANCE SYSTEM
First Claim
1. A driver assistance system for providing driver and vehicle feedback control signals comprising:
- a map database comprising navigation characteristics;
a GPS unit that receives location data of the vehicle;
at least one vehicle sensor unit configured to generate vehicle data;
a map matching module configured to receive the location data, navigation characteristics, and vehicle data to output the location of a vehicle with respect to a road;
a path tree module generating a path tree based on the output from the map matching module comprising a set of forward paths the vehicle can take and a path tree root comprising the current path the vehicle is on;
a prediction module configured to receive the path tree and determine a most probable future path for the vehicle using a processing circuit wherein the most probable path is segmented into a plurality of nodes associated with at least one threshold value;
a warning module configured to compare the threshold value associated with a node with the vehicle data and transmit a control signal in the case that the threshold value has been exceeded.
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Abstract
A system and method of assisting a driver of a vehicle by providing driver and vehicle feedback control signals is disclosed herein. The system and method includes receiving location data of the vehicle from a GPS unit, retrieving navigation characteristics stored in a map database based on the location data, generating a path tree comprising a set of forward paths the vehicle can take and a path tree root comprising the current path the vehicle is on and generating vehicle data from at least one vehicle sensor. The system and method also includes determining a most probable future path for the vehicle, determining road curvature of the most probable path at a plurality of nodes, comparing the received vehicle data with a threshold at one of the plurality of nodes on the most probable path, and transmitting a control signal in the case that the threshold has been exceeded.
80 Citations
25 Claims
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1. A driver assistance system for providing driver and vehicle feedback control signals comprising:
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a map database comprising navigation characteristics; a GPS unit that receives location data of the vehicle; at least one vehicle sensor unit configured to generate vehicle data; a map matching module configured to receive the location data, navigation characteristics, and vehicle data to output the location of a vehicle with respect to a road; a path tree module generating a path tree based on the output from the map matching module comprising a set of forward paths the vehicle can take and a path tree root comprising the current path the vehicle is on; a prediction module configured to receive the path tree and determine a most probable future path for the vehicle using a processing circuit wherein the most probable path is segmented into a plurality of nodes associated with at least one threshold value; a warning module configured to compare the threshold value associated with a node with the vehicle data and transmit a control signal in the case that the threshold value has been exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of assisting a driver of a vehicle by providing driver and vehicle feedback control signals, the method comprising:
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receiving location data of the vehicle from a GPS unit; retrieving navigation characteristics stored in a map database based on the location data; generating a path tree comprising a set of forward paths the vehicle can take and a path tree root comprising the current path the vehicle is on; generating vehicle data from at least one vehicle sensor; determining a most probable future path for the vehicle based on the path tree, the vehicle data, and the navigation characteristics using a processing circuit; determining road curvature of the most probable path at a plurality of nodes; comparing the received vehicle data with at least one threshold value associated with one of the plurality of nodes on the most probable path; and transmitting a control signal in the case that the threshold has been exceeded. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A non-transitory computer readable medium storing computer program code that, when executed by a computer, causes the computer to perform a method of assisting a driver of a vehicle comprising the functions of:
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receiving location data of the vehicle from a GPS unit; retrieving navigation characteristics stored in a map database based on the location data; generating a path tree comprising a set of forward paths the vehicle can take and a path tree root comprising the current path the vehicle is on; generating vehicle data from at least one vehicle sensor; determining a most probable future path for the vehicle based on the path tree, the vehicle data, and the navigation characteristics; determining road curvature of the most probable path at a plurality of nodes on the most probable path; comparing the received vehicle data with at least one threshold associated with one of the plurality of nodes on the most probable path; and transmitting a control signal in the case that the threshold has been exceeded. - View Dependent Claims (23, 24, 25)
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Specification