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US 2013/0085644 A1Published application
Blade control system and construction machine
AssigneeKomatsu Ltd.
InventorsKazuhiko HAYASHI, Kenjiro Shimada, Kenji Okamoto
Life of this patent
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Abstract
A blade control system of the present invention includes a determining part which is configured to determine whether or not a distance between a designed surface and a cutting edge of a blade is less than or equal to a threshold to be determined based on a speed, and a lift cylinder controlling part which is configured to supply hydraulic oil to a lift cylinder for starting elevation of the blade when the determining part determines that the distance is less than or equal to the threshold.
Claims7
A blade control system, comprising:
- a lift frame vertically pivotably attached to a vehicle body;
- a blade supported by a tip of the lift frame;
- a lift cylinder configured to vertically pivot the lift frame;
- a distance calculating part configured to calculate a distance between a designed surface and a cutting edge of the blade, the designed surface formed as a three-dimensionally designed landform indicating a target shape of an object for dozing;
- a speed obtaining part configured to obtain a speed of the cutting edge with respect to the designed surface;
- a determining part configured to determine whether or not the distance between the designed surface and the cutting edge of the blade is less than or equal to a threshold to be set based on the speed;
- and
- a lift cylinder controlling part configured to supply a hydraulic oil to the lift cylinder for starting elevation of the blade when the determining part determines that the distance between the designed surface and the cutting edge of the blade is less than or equal to the threshold.
5 more elements
Dependencies are inferred from the claim text.