System and method for calculating a horizontal camera to target distance
AssigneeFord Global Technologies, LLC
InventorsRoger Arnold Trombley, Christopher Scott Nave, Erick Michael Lavoie, Bradley G. Hockrein, Don Jacob Mattern
Life of this patent
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Abstract
A system and method for calculating a horizontal camera to target distance is provided. A camera on board a vehicle is configured to image a target on a trailer that is aligned with the vehicle. A controller is in communication with the camera and is supplied a user-obtained measurement. The controller is configured to calculate a first horizontal distance and a second horizontal distance, and to sum the first and second horizontal distances to calculate a horizontal camera to target distance.
Claims20
A trailer backup assist system comprising:
- a camera configured to image a target on a trailer that is aligned with a vehicle;
- and a controller configured to:
- estimate a target to ground measurement based on a draw bar drop measurement obtained by a user;
- calculate a first and a second horizontal distance;
- and
- sum the first and the second horizontal distance to calculate a horizontal camera to target distance.
A trailer backup assist system comprising:
- a camera on board a vehicle and having a vertical field of view defined by a lower field extent and an upper field extent for imaging a target located on a trailer;
- an input device for entering a user-obtained measurement;
- and
- a controller for receiving image data from the camera and the user-obtained measurement to calculate a first horizontal distance and a second horizontal distance;
- wherein the first horizontal distance extends horizontally from the camera to an intersection point between the lower field extent and a centerline longitudinal axis of the target;
- and
- wherein the second horizontal distance extends horizontally from the intersection point to a target midpoint.
A method for calculating a horizontal camera to target distance, comprising the steps of:
- providing a camera on board a vehicle and imaging a target located on a trailer aligned with the vehicle;
- supplying a controller with image data from the camera and a user-obtained measurement;
- and
- using the controller to calculate a first horizontal distance and a second horizontal distance;
- wherein the first horizontal distance extends horizontally from the camera to an intersection point between the lower field extent and a centerline longitudinal axis of the target;
- and
- wherein the second horizontal distance extends horizontally from the intersection point to a target midpoint.
Dependencies are inferred from the claim text.