System and method for controlling a work machine
First Claim
1. A system for moving material at a work site, comprising:
- a work machine comprising a chassis, a material mover carried by said chassis and defining a material mover position, a location sensor carried by said chassis, and a steering mechanism configured to control a travel direction of said work machine; and
a controller system operably coupled to said material mover, said location sensor, and said steering mechanism, said controller system configured to;
store a sequence of travel paths for said work machine to follow;
control said steering mechanism to follow said sequence of travel paths;
determine said material mover position;
determine followed travel positions of said work machine based on signals from said location sensor;
generate an as-built map as said work machine follows said sequence of travel paths based on said material mover position and followed travel positions;
compare said as-built map to a desired terrain map;
generate a revised sequence of travel paths for said work machine to follow based on said comparison between said as-built map and said desired terrain map, wherein said revised sequence alters a material volume movement sequence of said work machine; and
control said steering mechanism to follow said revised sequence of travel paths.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for moving material at a work site includes: a work machine including a chassis, a material mover defining a material mover position, a location sensor, and a steering mechanism; and a controller system operably coupled to the material mover, the location sensor, and the steering mechanism. The controller system is configured to: store a sequence of travel paths; control the steering mechanism to follow the sequence of travel paths; determine the material mover position; determine followed travel positions of the work machine; generate an as-built map as the work machine follows the sequence of travel paths based on the material mover position and followed travel positions; compare the as-built map to a desired terrain map; generate a revised sequence of travel paths based on the comparison between the as-built map and the desired terrain map; and control the steering mechanism to follow the revised sequence of travel paths.
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Citations
18 Claims
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1. A system for moving material at a work site, comprising:
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a work machine comprising a chassis, a material mover carried by said chassis and defining a material mover position, a location sensor carried by said chassis, and a steering mechanism configured to control a travel direction of said work machine; and a controller system operably coupled to said material mover, said location sensor, and said steering mechanism, said controller system configured to; store a sequence of travel paths for said work machine to follow; control said steering mechanism to follow said sequence of travel paths; determine said material mover position; determine followed travel positions of said work machine based on signals from said location sensor; generate an as-built map as said work machine follows said sequence of travel paths based on said material mover position and followed travel positions; compare said as-built map to a desired terrain map; generate a revised sequence of travel paths for said work machine to follow based on said comparison between said as-built map and said desired terrain map, wherein said revised sequence alters a material volume movement sequence of said work machine; and control said steering mechanism to follow said revised sequence of travel paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a work machine comprising a chassis, a material mover carried by said chassis and defining a material mover position, a location sensor carried by said chassis, and a steering mechanism configured to control a travel direction of said work machine, said method being implemented by a controller system and comprising:
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storing a sequence of travel paths for said work machine to follow; controlling said steering mechanism to follow said sequence of travel paths; determining said material mover position; determining followed travel positions of said work machine based on signals from said location sensor; generating an as-built map as said work machine follows said sequence of travel paths based on said material mover position and followed travel positions; comparing said as-built map to a desired terrain map; generating a revised sequence of travel paths for said work machine to follow based on said comparison between said as-built map and said desired terrain map, wherein said revised sequence alters a material volume movement sequence of said work machine; and controlling said steering mechanism to follow said revised sequence of travel paths. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification