Agricultural implement mounting
First Claim
Patent Images
1. An agricultural vehicle comprising:
- an implement connection hitch which is moveable relative to an axis defined by a rear axle of the agricultural vehicle;
a hitch control system controlling movement of the implement connection hitch; and
an agricultural vehicle position determining system coupled with the hitch control system and operable to determine a location for the agricultural vehicle;
wherein the hitch control system is arranged to;
maintain a first operating position of the implement connection hitch relatively close to the rear axle of the agricultural vehicle whilst the agricultural vehicle traverses a first, straight, path whilst operating an attached implement;
identify by reference to the agricultural vehicle position determining system, a start of a second, curved, path to be traversed by the agricultural vehicle and the attached implement; and
move the implement connection hitch rearwards away from the rear axle of the agricultural vehicle and laterally parallel to the axis defined by the rear axle until the implement connection hitch reaches a second operating position offset rearwards and laterally from a first operating position of the implement connection hitch such as to reduce a turning circle of the agricultural vehicle and attached implement during traversal of the second curved path;
wherein at an end of the second curved path, the hitch control system is rearranged to;
move the implement connection hitch relative to the rear axle of the agricultural vehicle until the implement connection hitch reaches a third operating position, offset from the first and second operating positions of the implement connection hitch.
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Abstract
An agricultural vehicle has an implement connection hitch which is moveable relative to a rear axle of the vehicle. A system for controlling movement of the connection hitch is coupled with position sensors such as a GPS receiver. During turning maneuvers, the control system moves the hitch relative to the rear axle of the vehicle until it reaches an offset position such as to reduce the turning circle of the vehicle and a connected implement. The extent of offset may be determined automatically by the control system on identification of a connected implement.
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Citations
15 Claims
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1. An agricultural vehicle comprising:
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an implement connection hitch which is moveable relative to an axis defined by a rear axle of the agricultural vehicle; a hitch control system controlling movement of the implement connection hitch; and an agricultural vehicle position determining system coupled with the hitch control system and operable to determine a location for the agricultural vehicle; wherein the hitch control system is arranged to; maintain a first operating position of the implement connection hitch relatively close to the rear axle of the agricultural vehicle whilst the agricultural vehicle traverses a first, straight, path whilst operating an attached implement; identify by reference to the agricultural vehicle position determining system, a start of a second, curved, path to be traversed by the agricultural vehicle and the attached implement; and move the implement connection hitch rearwards away from the rear axle of the agricultural vehicle and laterally parallel to the axis defined by the rear axle until the implement connection hitch reaches a second operating position offset rearwards and laterally from a first operating position of the implement connection hitch such as to reduce a turning circle of the agricultural vehicle and attached implement during traversal of the second curved path;
wherein at an end of the second curved path, the hitch control system is rearranged to;move the implement connection hitch relative to the rear axle of the agricultural vehicle until the implement connection hitch reaches a third operating position, offset from the first and second operating positions of the implement connection hitch. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In an agricultural vehicle having an implement connection hitch moveably mounted adjacent a rear axle of the agricultural vehicle, the rear axle defining an axis, a method of operating an implement coupled to the implement connection hitch comprising:
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attaching an implement to the implement connection hitch at a first operating position of the implement connection hitch relatively close to the rear axle; traversing a first, straight, path whilst operating the agricultural vehicle and attached implement; identifying a start of a second, curved, path to be traversed by the agricultural vehicle and attached implement; moving the implement connection hitch rearwards of the agricultural vehicle away from the rear axle and laterally parallel to the axis of the rear axle of the agricultural vehicle until the implement connection hitch reaches a predetermined distance offset from a front to rear centreline of the agricultural vehicle, defined as a second operating position rearwards and laterally offset from the first operating position of the implement connection hitch such as to reduce a turning circle of the agricultural vehicle and attached implement; traversing the second, curved path, and moving the implement connection hitch relative to the rear axle of the agricultural vehicle until the implement connection hitch reaches a third operating position offset from the first and second operating positions of the implement connection hitch, at an end of the second curved path. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification