Method and apparatus for rear cross traffic collision avoidance
First Claim
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1. A system for providing rear cross-traffic collision avoidance for a subject vehicle, said system comprising:
- object detection sensors for detecting objects and providing object sensor signals;
vehicle sensors for sensing vehicle turning and providing vehicle sensor signals;
an object tracking and classification processor responsive to the object sensor signals, said tracking and classification processor identifying and tracking objects that potentially may interfere with the subject vehicle and providing target identification and tracking signals;
a host vehicle path prediction processor responsive to the vehicle sensor signals, said host vehicle path prediction processor providing path curvature signals indicating the curvature of a path of the subject vehicle;
a target selection processor responsive to the target identification and tracking signals and the path curvature signals, said target selection processor identifying potential objects in the tracking and classification signals that may be in a collision path with the subject vehicle, and providing potential objects signals; and
a threat assessment processor responsive to the potential objects signal and determining whether action should be taken to avoid a collision with an object.
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Abstract
A rear cross-traffic collision avoidance system that provides a certain action, such as a driver alert or automatic braking, in the event of a collision threat from cross-traffic. The system includes object detection sensors for detecting objects in the cross-traffic and vehicle sensors for detecting the vehicle turning. A controller uses the signals from the object detection sensors and the vehicle sensors to determine and identify object tracks that may interfere with the subject vehicle based on the vehicle turning.
66 Citations
20 Claims
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1. A system for providing rear cross-traffic collision avoidance for a subject vehicle, said system comprising:
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object detection sensors for detecting objects and providing object sensor signals; vehicle sensors for sensing vehicle turning and providing vehicle sensor signals; an object tracking and classification processor responsive to the object sensor signals, said tracking and classification processor identifying and tracking objects that potentially may interfere with the subject vehicle and providing target identification and tracking signals; a host vehicle path prediction processor responsive to the vehicle sensor signals, said host vehicle path prediction processor providing path curvature signals indicating the curvature of a path of the subject vehicle; a target selection processor responsive to the target identification and tracking signals and the path curvature signals, said target selection processor identifying potential objects in the tracking and classification signals that may be in a collision path with the subject vehicle, and providing potential objects signals; and a threat assessment processor responsive to the potential objects signal and determining whether action should be taken to avoid a collision with an object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for providing rear cross-traffic collision avoidance between a subject vehicle backing into cross-traffic and target vehicles traveling in the cross-traffic, said system comprising:
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object detection sensors for detecting the target vehicles in the cross-traffic as the subject vehicle backs up; vehicle sensors for detecting turning of the subject vehicle; and a controller for determining a path curvature of the subject vehicle and identifying and tracking target vehicles that potentially may interfere with the subject vehicle, said controller causing certain actions to be taken if a potential collision with one of the target vehicles is determined. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for providing rear cross-traffic collision avoidance between a subject vehicle backing into cross-traffic and target vehicles traveling in the cross-traffic, said method comprising:
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detecting the target vehicles in the cross-traffic; detecting turning of the subject vehicle as the subject vehicle backs into the cross-traffic; identifying and tracking the target vehicles in the cross-traffic that may potentially interfere with the subject vehicle; determining a path curvature of the subject vehicle; and causing certain actions to be taken if a potential collision with one of the target vehicles is determined. - View Dependent Claims (20)
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Specification