Method of Dynamic Intersection Mapping
First Claim
1. A method of operating a collision warning system in a motor vehicle, the method comprising:
- mapping a road section proximate the motor vehicle, the road section including an intersection between a first road and a second road and an estimated lane configuration for the intersection;
determining a first path for the motor vehicle to traverse the road section including at least one lane associated with the estimated lane configuration for the intersection;
receiving a signal transmitted by a target vehicle;
determining a second path for the target vehicle to traverse the road section including at least one lane associated with the estimated lane configuration for the intersection;
calculating a threat of collision for the motor vehicle with the target vehicle by comparing the first path to the second path;
determining a line of sight condition associated with the target vehicle;
selecting between a normal alert mode for the collision warning system and an enhanced alert mode for the collision warning system based on the line of sight condition associated with the target vehicle;
wherein the normal alert mode includes a first mode associated with a warning alert and a second mode associated with no alert;
wherein the enhanced alert mode includes a first mode associated with a warning alert, a second mode associated with an informing alert, and a third mode associated with no alert; and
providing an alert to the driver according to one of the normal alert mode and the selected enhanced alert mode based on the calculated threat of collision for the motor vehicle with the target vehicle.
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Accused Products
Abstract
A motor vehicle is provided having a collision warning system that can map an upcoming road section for the motor vehicle. The system can evaluate potential paths for the road section based on vehicle travel history information through it. The system can receive the information from a transmitter proximate the road section, such as a roadside transmitter or one or more nearby vehicles having traversed the road section. The road section can include an intersection and the system can determine a lane configuration for at least a portion of it based on vehicle travel history information. The system can calculate a threat of collision for the motor vehicle with a target vehicle based on map data obtained from estimated paths or lane configurations for the road section. Methods pertaining to mapping a road section and operation of the system are also provided.
17 Citations
20 Claims
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1. A method of operating a collision warning system in a motor vehicle, the method comprising:
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mapping a road section proximate the motor vehicle, the road section including an intersection between a first road and a second road and an estimated lane configuration for the intersection; determining a first path for the motor vehicle to traverse the road section including at least one lane associated with the estimated lane configuration for the intersection; receiving a signal transmitted by a target vehicle; determining a second path for the target vehicle to traverse the road section including at least one lane associated with the estimated lane configuration for the intersection; calculating a threat of collision for the motor vehicle with the target vehicle by comparing the first path to the second path; determining a line of sight condition associated with the target vehicle; selecting between a normal alert mode for the collision warning system and an enhanced alert mode for the collision warning system based on the line of sight condition associated with the target vehicle; wherein the normal alert mode includes a first mode associated with a warning alert and a second mode associated with no alert; wherein the enhanced alert mode includes a first mode associated with a warning alert, a second mode associated with an informing alert, and a third mode associated with no alert; and providing an alert to the driver according to one of the normal alert mode and the selected enhanced alert mode based on the calculated threat of collision for the motor vehicle with the target vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a collision warning system in a motor vehicle, the method comprising:
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receiving a threat of collision for the motor vehicle with a target vehicle; receiving a line of sight condition associated with the target vehicle; determining whether the line of sight condition indicates that the target vehicle is visible to a driver of the motor vehicle; selecting a normal alert mode for the collision warning system upon a determination that the line of sight condition indicates that the target vehicle is visible to the driver of the motor vehicle, the normal alert mode including a first mode associated with a warning alert and a second mode associated with no alert; selecting an enhanced alert mode for the collision warning system upon a determination that the line of sight condition indicates that the target vehicle is not visible to the driver of the motor vehicle, the enhanced alert mode including a first mode associated with a warning alert, a second mode associated with an informing alert, and a third mode associated with no alert; and providing an alert to the driver according to one of the selected normal alert mode and the selected enhanced alert mode based on the received threat of collision for the motor vehicle with the target vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A motor vehicle comprising:
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a transmitter configured to transmit signals on a vehicle communications network; a receiver configured to receive signals on a vehicle communications network; a navigation system; and a collision warning system, the collision warning system including an electronic control unit configured to perform actions comprising; receiving via the receiver a signal transmitted by a target vehicle; calculating a threat of collision for the motor vehicle with the target vehicle; receiving a line of sight condition associated with the target vehicle; determining whether the line of sight condition indicates that the target vehicle is visible to a driver of the motor vehicle; selecting between a normal alert mode for the collision warning system and an enhanced alert mode for the collision warning system based on the line of sight condition associated with the target vehicle; wherein the normal alert mode includes a first mode associated with a warning alert and a second mode associated with no alert; wherein the enhanced alert mode includes a first mode associated with a warning alert, a second mode associated with an informing alert, and a third mode associated with no alert; and providing an alert to the driver according to one of the normal alert mode and the selected enhanced alert mode based on the calculated threat of collision for the motor vehicle with the target vehicle. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification