System and method for updating a speed calibration of a work vehicle
First Claim
1. A control system of a work vehicle, comprising:
- a controller having a memory and a processor, wherein the controller is configured to;
receive a first signal from a spatial locating device indicative of a spatial locating speed of the work vehicle or a spatial locating position of the work vehicle for determining the spatial locating speed;
determine a sensed speed of the work vehicle based on a calibration and a second signal indicative of a rotational rate of a wheel of the work vehicle;
determine whether a difference between the sensed speed and the spatial locating speed exceeds a calibration threshold;
in response to determining that the difference exceeds the calibration threshold, update the calibration such that the sensed speed is substantially equal to the spatial locating speed, and update the sensed speed based on the updated calibration and the second signal; and
instruct a speed control system to limit a ground speed of the work vehicle based on the sensed speed.
2 Assignments
0 Petitions
Accused Products
Abstract
A controller is configured to receive a first signal indicative of a spatial locating speed or a spatial locating position for determining the spatial locating speed. The controller is configured to determine a sensed speed of the work vehicle based on a calibration and a second signal indicative of a rotational rate of a wheel of the work vehicle, and to determine whether a difference between the sensed speed and the spatial locating speed exceeds a calibration threshold. In response to determining that the difference exceeds the calibration threshold, the controller is configured to update the calibration such that the sensed speed is substantially equal to the spatial locating speed, and update the sensed speed based on the updated calibration and the second signal. Further, the controller is configured to instruct a speed control system to limit a ground speed of the work vehicle based on the sensed speed.
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Citations
20 Claims
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1. A control system of a work vehicle, comprising:
a controller having a memory and a processor, wherein the controller is configured to; receive a first signal from a spatial locating device indicative of a spatial locating speed of the work vehicle or a spatial locating position of the work vehicle for determining the spatial locating speed; determine a sensed speed of the work vehicle based on a calibration and a second signal indicative of a rotational rate of a wheel of the work vehicle; determine whether a difference between the sensed speed and the spatial locating speed exceeds a calibration threshold; in response to determining that the difference exceeds the calibration threshold, update the calibration such that the sensed speed is substantially equal to the spatial locating speed, and update the sensed speed based on the updated calibration and the second signal; and instruct a speed control system to limit a ground speed of the work vehicle based on the sensed speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for updating a calibration of a work vehicle, comprising:
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receiving, via a controller, a first signal from a spatial locating device indicative of a spatial locating speed of the work vehicle or a spatial locating position of the work vehicle for determining the spatial locating speed; determining, via the controller, a sensed speed of the work vehicle based on the calibration of the work vehicle and a second signal indicative of a rotational rate of a wheel of the work vehicle; determining, via the controller, whether a difference between the sensed speed and the spatial locating speed exceeds a calibration threshold; in response to determining that at least the difference exceeds the calibration threshold, and zero to two of the following;
the spatial locating speed and the sensed speed are substantially constant and above a speed threshold, and a draft load on the work vehicle is substantially constant and below a load threshold, updating, via the controller, the calibration such that the sensed speed is substantially equal to the spatial locating speed, and updating the sensed speed based on the updated calibration and the second signal; andinstructing, via the controller, a speed control system to limit a ground speed of the work vehicle based on the sensed speed. - View Dependent Claims (14, 15, 16)
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17. A control system of a work vehicle, comprising:
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a spatial locating device configured to output a first signal indicative of a spatial locating speed of the work vehicle or a spatial locating position of the work vehicle for determining the spatial locating speed; a rotation sensor configured to output a second signal indicative of a rotational rate of a wheel of the work vehicle; a load sensor configured to output a third signal indicative of a draft load on the work vehicle; a speed control system configured to control a ground speed of the work vehicle; and a controller having a memory and a processor, wherein the controller is communicatively coupled to the spatial locating device, the rotation sensor, the load sensor, and the speed control system, and wherein the controller is configured to; receive the first signal from the spatial locating device indicative of the spatial locating speed of the work vehicle or the spatial locating position of the work vehicle; receive the second signal from the rotation sensor indicative of the rotational rate of the wheel; receive the third signal from the load sensor indicative of the draft load; determine a sensed speed of the work vehicle based on a calibration and the second signal; determine whether a difference between the sensed speed and the spatial locating speed exceeds a calibration threshold; in response to determining that the difference exceeds the calibration threshold, the spatial locating speed and the sensed speed are substantially constant and above a speed threshold, and the draft load on the work vehicle is substantially constant and below a load threshold, update the calibration such that the sensed speed is substantially equal to the spatial locating speed, and update the sensed speed based on the updated calibration and the second signal; and instruct the speed control system to limit the ground speed of the work vehicle based on the sensed speed. - View Dependent Claims (18, 19, 20)
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Specification