Method and system for detecting an in-path target obstacle in front of a vehicle
First Claim
1. A method for detecting a target obstacle in front of a vehicle traveling on a road, the vehicle having a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle, the method comprising:
- determining a first position of at least one object in front of the vehicle relative to the radar based on the radar waves;
determining a tangent of the lane boundary of the road;
determining a line intersecting the tangent perpendicularly through the center of the vehicle and the lane boundary so as to define a point corresponding to a first lateral deviation between the center of the vehicle and a lane boundary of the road;
determining a curvature of the road based on the first lateral deviation;
determining a second position of the at least one object relative to the radar and the road based on the curvature of the road; and
determining the target obstacle based on the second position of the at least one object.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and system for detecting a target obstacle in front of a vehicle traveling on a road includes a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle for use in determining a first position of the objects in front of the vehicle relative to the radar. A lane position measurement device determines a lateral deviation between the center of the vehicle and a lane boundary of the road. Control logic then determines a curvature of the road based on the lateral deviation, independent of the traveling path of the vehicle. The control logic then determines a second position of the objects based on the curvature of the road and the target obstacle based on the second position of the objects.
140 Citations
20 Claims
-
1. A method for detecting a target obstacle in front of a vehicle traveling on a road, the vehicle having a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle, the method comprising:
-
determining a first position of at least one object in front of the vehicle relative to the radar based on the radar waves; determining a tangent of the lane boundary of the road;
determining a line intersecting the tangent perpendicularly through the center of the vehicle and the lane boundary so as to define a point corresponding to a first lateral deviation between the center of the vehicle and a lane boundary of the road;determining a curvature of the road based on the first lateral deviation; determining a second position of the at least one object relative to the radar and the road based on the curvature of the road; and determining the target obstacle based on the second position of the at least one object. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system for detecting a target obstacle in front of a vehicle traveling on a road, the system comprising:
-
a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle; a lane position measurement device for determining a tangent of the lane boundary of the road and a line intersecting the tangent perpendicularly through the center of the vehicle and the lane boundary so as to define a point corresponding to a first lateral deviation between the center of the vehicle and a lane boundary of the road; and control logic operative to determine a first position of at least one object in front of the vehicle relative to the radar based on the radar waves, determine a curvature of the road based on the first lateral deviation, determine a second position of the at least one object relative to the radar and the road based on the curvature, and determine the target obstacle based on the second position of the at least one object. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method for determining if an object is a target obstacle in the path of a vehicle traveling on a road, the vehicle having a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle and detecting the object, the method comprising:
-
determining a first position of at least one object in front of the vehicle relative to the radar based on the radar waves; determining a tangent of the lane boundary of the road; determining a line intersecting the tangent perpendicularly through the center of the vehicle and the lane boundary so as to define a point corresponding to a first lateral deviation between the center of the vehicle and a lane boundary of the road; determining a curvature of the road based on the first lateral deviation; determining a second position of the at least one object relative to the radar and the road based on the curvature of the road; and determining if the object is in the path of the vehicle based on the second position of the at least one object. - View Dependent Claims (16, 17)
-
-
18. A system for determining if an object is a target obstacle in the path of a vehicle traveling on a road, the system comprising:
-
a radar positioned at a center of the vehicle for transmitting radar waves ahead of the vehicle and detecting the object; a lane position measurement device for determining a tangent of the lane boundary of the road and a line intersecting the tangent perpendicularly through the center of the vehicle and the lane boundary so as to define a point corresponding to a first lateral deviation between the center of the vehicle and a lane boundary of the road; and control logic operative to determine a first position of at least one object in front of the vehicle relative to the radar based on the radar waves, determine a curvature of the road based on the first lateral deviation, determine a second position of the at least one object relative to the radar and the road based on the curvature, and determine if the object is in the path of the vehicle based on the second position of the at least one object. - View Dependent Claims (19, 20)
-
Specification