Towing vehicle guidance for trailer hitch connection
First Claim
1. Apparatus for guiding an operator of a towing vehicle being moved toward a hitch-mating position with respect to a vehicle to be towed, wherein the vehicle to be towed is a trailer having a trailer hitch, the apparatus comprising:
- (a) a video camera adapted to be carried on a towing vehicle so as to generate an image of a field of view including a portion of a vehicle to be towed, during a time when the towing vehicle is approaching the hitch-mating position;
(b) an alignment beam projecting device adapted to be mounted on a hitch ball on the towing vehicle and aimed directly upward;
(c) a video display device adapted to be located in view of the operator of the towing vehicle and to display the image generated by the video camera during the time when the towing vehicle is approaching the hitch-mating position; and
(d) a target adapted to be mounted adjacent the trailer hitch on the vehicle to be towed, the target including an inclined target plate located in a position wherein a beam of light projected directly upward from the alignment beam projecting device will impinge visibly on the target and wherein the target will be within the image generated by the video camera, when the video camera and the alignment beam projecting device are mounted on the towing vehicle and the towing vehicle is near the hitch-mating position and approaching the hitch-mating position with respect to the vehicle to be towed.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and a method for its use to assist an operator of a towing vehicle in backing the towing vehicle accurately into a position in which parts of a hitch can be mated to connect the towing vehicle with a trailer. A camera in a towing vehicle module provides the towing vehicle operator a video image of the trailer and a target mounted on it. A beam of light from the towing vehicle module and falling on the target is visible in the video image to show when the towing vehicle approaches and reaches a position in which the hitch can be mated.
78 Citations
43 Claims
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1. Apparatus for guiding an operator of a towing vehicle being moved toward a hitch-mating position with respect to a vehicle to be towed, wherein the vehicle to be towed is a trailer having a trailer hitch, the apparatus comprising:
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(a) a video camera adapted to be carried on a towing vehicle so as to generate an image of a field of view including a portion of a vehicle to be towed, during a time when the towing vehicle is approaching the hitch-mating position; (b) an alignment beam projecting device adapted to be mounted on a hitch ball on the towing vehicle and aimed directly upward; (c) a video display device adapted to be located in view of the operator of the towing vehicle and to display the image generated by the video camera during the time when the towing vehicle is approaching the hitch-mating position; and (d) a target adapted to be mounted adjacent the trailer hitch on the vehicle to be towed, the target including an inclined target plate located in a position wherein a beam of light projected directly upward from the alignment beam projecting device will impinge visibly on the target and wherein the target will be within the image generated by the video camera, when the video camera and the alignment beam projecting device are mounted on the towing vehicle and the towing vehicle is near the hitch-mating position and approaching the hitch-mating position with respect to the vehicle to be towed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Apparatus for guiding an operator of a towing vehicle being backed toward a hitch-mating position with respect to a vehicle to be towed, comprising:
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(a) a primary hitch alignment light beam projector mounted on a hitch ball carried on the towing vehicle and aimed directly upward and arranged to project a beam of light directly upward in a position having a predetermined relationship to a pivot axis defined by a hitch part carried on the towing vehicle; (b) a target located in a predetermined position with respect to a hitch coupler on a vehicle to be towed, the target including an inclined target plate located so as to be struck by a beam of light projected directly upward from the hitch alignment light beam projector when the towing vehicle is near the hitch-mating position; (c) a camera carried on the towing vehicle in a location where the camera can form an image of the target when the towing vehicle is in a preliminary position from which it can be backed toward the hitch-mating position with respect to the vehicle to be towed; and (d) an image display device located in view of the operator of the towing vehicle and arranged to display of at least a part of an image formed by the camera. - View Dependent Claims (15, 16, 17, 18)
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19. A method for moving a towing vehicle into a desired hitch-mating position with respect to a trailer, comprising:
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(a) operating a video camera near a first trailer hitch part mounted on the towing vehicle and intended to be mated with a trailer hitch coupler connected with front part of the trailer, and thereby creating a video image of an area beyond the first trailer hitch part in a general direction in which the towing vehicle is to move toward the hitch-mating position, and transmitting said video image from the video camera; (b) mounting a visual target including an inclined target plate on the trailer so that the target plate is in a predetermined location with respect to the trailer hitch coupler and is in a downwardly facing inclined orientation; (c) projecting a beam of light directly upward from a projecting device mounted on a hitch ball having a predetermined location on the towing vehicle with respect to the first trailer hitch part mounted on the towing vehicle, the inclined target plate being located so as to be struck by the beam of light projected directly upward when the towing vehicle is near the hitch-mating position; (d) observing said video image on a video imaging device while backing the towing vehicle toward the trailer hitch coupler; (e) steering the towing vehicle in response to viewing the video image so as to include at least a part of said visual target in said video image, while moving the towing vehicle rearwardly toward the hitch-mating position until the beam of light projected directly upward falls on the target face; (f) observing the video image of the visual target including an image of the beam of light projected directly upward impinging on the target plate while moving the towing vehicle further toward the desired hitch-mating position for mating the trailer hitch coupler of the trailer with the trailer hitch part on the towing vehicle; and (g) stopping the towing vehicle when the beam of light projected directly upward falls on a predetermined part of the target plate. - View Dependent Claims (20, 21, 22, 23)
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24. Apparatus for guiding an operator of a towing vehicle being hitched to a trailer, comprising:
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(a) a towing vehicle module adapted to be mounted on a towing vehicle, the towing vehicle module including a light beam projector adapted to be mounted on a hitch ball and aimed directly upward and arranged to project a beam of light in a predetermined direction relative to the towing vehicle module when the towing vehicle module is mounted on the hitch ball on the towing vehicle in a predetermined position with respect to a trailer hitch part on the towing vehicle; (b) a trailer module adapted to be mounted on the trailer so as to be located in a predetermined position with respect to a trailer hitch coupler when said trailer module is mounted on said trailer, the trailer module including a target including an inclined target plate and having visual indicia on a target face, the target plate being located so as to be struck by a beam of light projected directly upward from the light beam projector when the towing vehicle is near a hitch-mating position. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. Apparatus for guiding an operator of a towing vehicle as it is being hitched to a trailer, comprising:
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(a) a towing vehicle module adapted to be mounted on a towing vehicle, the towing vehicle module including first and second laser modules each capable of producing a linear scan beam pattern, the first and second laser modules being located in the towing vehicle module so as to generate beams scanned in respective vertical planes, projected generally in a hitch approaching direction and so that the vertical planes of the scanned beams intersect each other and define a line of intersection extending upwardly in a predetermined location with respect to a hitch pivot point on the towing vehicle module; and (b) a target module including an inclined target plate and having a target face, the target module being adapted to be mounted on a trailer in a predetermined location, with the target face directed downwardly at a predetermined inclination and with the inclined target plate located so as to be struck by a beam of light projected directly upward along the line of intersection and the target plate including a surface on which an incident beam from one of said laser modules is visible. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification