Patent ID: 8655556
Filing Date: 2014-02-18
Classification: E02F

Abstract:
1. 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.