System and method for detecting a crest
First Claim
Patent Images
1. A system for automated control of a machine having a ground engaging work implement, comprising:
- an implement load sensor system configured to measure a load on the ground engaging work implement indicative of an amount of material being moved by the ground engaging work implement along a work surface and provide an implement load signal indicative of the load on the ground engaging work implement to a controller;
the controller configured to;
store a threshold change in elevation, the threshold change in elevation being indicative of proximity to a crest;
receive the implement load signal;
determine a reduction in load on the ground engaging work implement;
determine a change in elevation of the work surface based at least in part upon the reduction in load on the ground engaging work implement;
determine whether the change in elevation of the work surface exceeds the threshold change in elevation of the work surface; and
generate an alert command signal if the change in elevation of the work surface exceeds the threshold change in elevation of the work surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for automated control of a machine having a ground engaging work implement includes an implement load sensor system. A controller determines a change in terrain based at least in part upon a change in the load on the ground engaging work implement. If the change in terrain exceeds a threshold, the controller generates an alert command signal. A method is also provided.
-
Citations
21 Claims
-
1. A system for automated control of a machine having a ground engaging work implement, comprising:
-
an implement load sensor system configured to measure a load on the ground engaging work implement indicative of an amount of material being moved by the ground engaging work implement along a work surface and provide an implement load signal indicative of the load on the ground engaging work implement to a controller; the controller configured to; store a threshold change in elevation, the threshold change in elevation being indicative of proximity to a crest; receive the implement load signal; determine a reduction in load on the ground engaging work implement; determine a change in elevation of the work surface based at least in part upon the reduction in load on the ground engaging work implement; determine whether the change in elevation of the work surface exceeds the threshold change in elevation of the work surface; and generate an alert command signal if the change in elevation of the work surface exceeds the threshold change in elevation of the work surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A controller implemented method of detecting a change in elevation of a work surface, comprising:
-
providing a machine having a ground engaging work implement; providing an implement load sensor system configured to measure a load on the ground engaging work implement indicative of an amount of material being moved by the ground engaging work implement along the work surface; receiving the implement load signal; determining a reduction in load on the ground engaging work implement; determining a change in elevation of the work surface based at least in part upon the reduction in load on the ground engaging work implement; determining whether the change in elevation of the work surface exceeds a threshold change in elevation of the work surface; and generating an alert command signal if the change in elevation of the work surface exceeds the threshold change in elevation of the work surface. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A machine comprising:
-
a prime mover; a blade for moving material along a work surface; an implement load sensor system configured to measure a load on the blade, the load being indicative of an amount of material being moved by the blade, and provide an implement load signal indicative of the load on the blade to a controller; and the controller configured to; receive the implement load signal; determine a reduction in load on the ground engaging work implement; determine a change in elevation of the work surface based at least in part upon the reduction in load on the blade; determine whether the change in elevation of the work surface exceeds a threshold change in elevation of the work surface; and generate an alert command signal if the change in elevation of the work surface exceeds the threshold change in elevation of the work surface. - View Dependent Claims (18, 19, 20)
-
-
21. A system for automated control of a machine having a ground engaging work implement, comprising:
-
means for measuring a load on the ground engaging work implement, the load being indicative of an amount of material being moved by the ground engaging work implement along a work surface; means for determining a reduction in load on the ground engaging work implement; means for determining a change in elevation of the work surface based at least in part upon the reduction in load on the ground engaging work implement; means for determining whether the change in elevation of the work surface exceeds a threshold change in elevation of the work surface and signifies proximity to a crest; and means for generating an alert command signal if the machine is in proximity to the crest.
-
Specification